2017 Review of Magnet News and Blogs

News and Technical Articles on Magnets and Magnetic Assemblies in 2017

2017 has been our first full year of posting news and technical articles.  As we approach the end of 2017, we thought that it would be interesting to look back on a busy and exciting year!

January

Our first blog of the year looked at the simple Magnetic Sweeper, used in factories, warehouses and in car parks to remove metal from floors.

This was followed by an article on Car roof top magnets, that are seen on the top taxis across the UK.

Also in the month, we published an article on a complex Rare Earth Magnet assembly designed to act as an emergency brake on an offshore winch.  The Bunting magnet designs team had worked closley with the client to develop and manufacture a unique high strength magnetic assembly.

February

Matthew Swallow, our Technical Sales Engineer for Magnets and Magnetic Assemblies, reported back from the UK Magnetic Society’s even on Non-Rotating Machines.  This included a fascinating review of how the US military intend to catapult planes from war ships in the future.

March

Bunting Magnetics Magic Magnetic Coins

Our product range of the month was Work Holding Magnets, used extensively across the manufacturing sector to secure, hold and lift metal components and parts.

We also looked at Magnet Magic and asked how these 4 coins were balanced on the edge of a mug.  This trick used the power of a magnetic block.

April

We reviewed the manufacture of specialist Magnetic Assemblies at our facility in the UK.  Many of the designs are bespoke and we examined the science behind a high performance magnetic coupling.

May

In May we explained where the name ‘Rare Earth’ originated when talking about high strength magnets.  Although commonly believed to be a relatively recently developed material, the original work dates back to the 1960s.

June

One of our most popular articles in 2017 provided health and safety advice for people handling and using high and low strength magnets.

Then we talked about the importance of the simple compass in the development of the world we know today.  The compass is believed to be over 2000 years old and helped many of our famous explorers discover new worlds.

July

Denis Elkins, our Quality Assurance Manager, announced our successful transition to the ISO9001:2015 Quality and ISO14001:2015 Environment Standards.

Denis_Elkins_Bunting_Magnetics_Europe-2176

August

Reports from China highlighted concerns about the rising price of Rare Earth Magnets.  The price was being driven up by a number of factors including the rise in demand for electric vehicles.

September

We launched a new Neodymium Magnet designed specially for use in sensors at the Sensors & Instrumentation Show at the NEC in Birmingham.

October/November

We are really keen to promote engineering to young people and were thrilled to be able to show the 1st Northchurch Cub Scouts around our magnet and magnetic separator factory in Berkhamsted.  The visit ‘attracted’ a lot of attention!

Sean Connery Roger Moore

November was also our ‘James Bond’ month and we looked back at all the movies to see where 007 or the villains had used the power of the magnet.  Part 1 focused on the Sean Connery and Roger Moore years, and was followed by Part 2 and the Timothy Dalton and Pierce Brosnan era.

December

Our final news of the year was about the Christmas Magnet Competition, where Andrew McAllister from Portsmouth won 5 Magnet Science Games.  Congratulations Andrew!

Thank you for reading our news and blogs in 2017.  It has been a great year.  If you need any information on magnets or magnetic assemblies please contact us on:

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the Bunting Europe website

Via the eMagnets online Magnet Shop

Bunting Magnetics Europe at Interplas 2017

 

 

News and Technical Articles on Magnets and Magnetic Assemblies in 2017 2017 has been our first full year of posting news and technical articles.  As we approach the end of 2017, we thought that it would be interesting to look back on a busy and exciting year! January Our first blog of the year looked […]

https://blog.e-magnetsuk.com/2017/12/15/2017-review-of-magnet-news-and-blogs/

Our Christmas Magnet Competition (now closed!)

The Chance to Win 5 Fantastic Magnet Science Games

The draw was made on the 13th December 2017 and the winner was Andrew McAllister from Portsmouth!  Congratulations and Merry Christmas!  The games will be on their way to you shortly!

To celebrate Christmas, we are running an exciting free magnet-focused competition!  You will be able to amaze friends and family by balancing coins on the edge of Doctor Who mugs and magically suspend things in mid-air.

magnet_games_motor

The winner will receive 5 fantastic Magnet Science Games:

The total package is worth over £150.00.

To enter the competition, please simply click on the link below to answer a magnet and James Bond related question.  The answer the the question can be found in one of our blogs.  Everyone who answers correctly will be entered into a draw that will take place on Wednesday 13th December 2017.

The Christmas Magnet Competition

Good luck!

For further information on Educational Magnets, please contact us at:

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the eMagnets online Magnet Shop

Terms and conditions

The Chance to Win 5 Fantastic Magnet Science Games The draw was made on the 13th December 2017 and the winner was Andrew McAllister from Portsmouth!  Congratulations and Merry Christmas!  The games will be on their way to you shortly! To celebrate Christmas, we are running an exciting free magnet-focused competition!  You will be able […]

https://blog.e-magnetsuk.com/2017/12/07/our-christmas-magnet-competition/

Cub Scouts Attracted to Engineering by Magnets

Bunting Europe is Visited by 1st Northchurch Cubs from Berkhamsted

A Berkhamsted based Cub Scout group were recently given a tour of their local Bunting Magnetics magnet, magnetic assembly and magnetic separator manufacturing plant.  The 1st Northchurch Cubs were shown how magnets are a fundamental part of everyone’s daily life.

IMG_3966AThe visit comes at a time when industry is desperately encouraging young people to get into engineering with initiatives like Tomorrow’s Engineers Week.

“This was an ideal opportunity to introduce the exciting industry of engineering to a group of enthusiastic young people,” explained Denis Elkins, Bunting’s Quality Assurance Manager.

IMG_3957“Most people do not appreciate that we all rely on magnets every day of our lives.  Magents like Neodymium Rare Earth are a key component in mobile phones, computers, wind turbines that generate clean energy, and family cars.

“It was great to see the Cub’s faces when we demonstrated the strength of some of our magnets.  They could not believe it.  We took them onto the shop floor and showed them how we made magnets and magnetic assemblies.  The young people were fascinated.”

Bunting Goody BagsIn all 24 cubs visited the Bunting plant along with scout leaders and parents.  As well as the tour, the cubs were shown a video about magnets, given a bag full of ‘magnetic’ goodies and there was a lot of cake!

“Introducing young people to the concept of engineering and manufacturing is vitally important,” explained Denis.  “As an industry, we have a responsibility to encourage events like this, bringing young people into the manufacturing environment to see and experience first-hand the excitement of designing and building engineered components and equipment.  It was a great success and we hope to see them again in the future.”

For more information on Magnets and Magnetic Assemblies supplied by Bunting Magnetics Europe Ltd and through their online eMagnets UK shop, please contact us on:

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the Bunting Europe website for specialist magnets and magnetic assemblies

Via the eMagnets online Magnet Shop

1st Northchurch Cubs

 

Bunting Europe is Visited by 1st Northchurch Cubs from Berkhamsted A Berkhamsted based Cub Scout group were recently given a tour of their local Bunting Magnetics magnet, magnetic assembly and magnetic separator manufacturing plant.  The 1st Northchurch Cubs were shown how magnets are a fundamental part of everyone’s daily life. The visit comes at a […]

https://blog.e-magnetsuk.com/2017/11/27/cub-scouts-attracted-to-engineering-by-magnets/

Magnets Featured in James Bond Movies Part 2

James Bond and his Enemies Both Use Magnetic Forces

In the second of our two James Bond blogs, we continue the review of how 007 and his enemies utilise magnets and magnetic forces.  Our first blog concentrated on the eras of Sean Connery and Roger Moore, and in this blog we look at the movies in which Magnets took a starring role alongside Timothy Dalton and Pierce Brosnan.

The Living Daylights (1987)

It was 14 years and the appearance of a new James Bond in the form of Timothy Dalton before another magnet inspired gadget appeared after Live and Let Die (1973).  In The Living Daylights, Bond has a Philips Magnetic Fob Key Ring Finder that emits a stun gas when activated by whistling the first notes of ‘Rule Britannia’.  In additional, this innocuous magnetic fob also contains high explosive detonated by a wolf whistle and a series of keys capable of opening 90% of the world’s locks.

the-living-daylights-148

GoldenEye (1995)

The most impressive use of magnetic forces featured in the movie that introduced Pierce Brosnan as 007.  GoldenEye was a top-secret Russian weapons system that converted two satellites into offensive weapons.  With special access codes, the satellites set off an electromagnetic pulse (EMP) that would cause any object working with an electrical circuit to fail.

Goldeneye satellite

In the real world, minor EMP events cause low levels of electrical noise or interference which can affect the operation of susceptible devices.  A very large EMP event, such as a lightning strike, is also capable of damaging objects such as trees, buildings and aircraft directly, either through heating effects or the disruptive effects of the very large magnetic field generated by the current.  The damaging effects of high-energy EMP have led to the introduction of EMP weapons, from tactical missiles with a small radius of effect to nuclear bombs tailored for maximum EMP effect over a wide area.

Tomorrow Never Dies (1997)

Magnetic GrenadeBrosnan’s next outing as James Bond came in Tomorrow Never Dies.  One of the most dramatic scenes in the movie is the car chase in the multi story car park, with Bond driving a BMW 750iL using an Ericsson Cellular Phone whilst hiding in the back seat.  The car was fitting with an array of weapons including Magnetic Flash Grenades.

Magnets in James Bond and the Real World

With the amazing advances in technology, many of the gadgets featured in early James Bond movies have now become reality.  Between 1963 and 2017, permanent magnet technology has evolved considerably, with Rare Earth Neodymium Magnets producing exceptionally strong magnetic forces.  In fact, without Magnets the world would be without mobile phones, wind turbines, and electric motors.

We just wonder when James bond will next need the help of a Magnetic Force.

For more information on Magnets used by James Bond (the first blog)Magnets or Magnetic Assemblies, please contact us on:

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the Bunting Europe website

Via the eMagnets online Magnet Shop

James Bond and his Enemies Both Use Magnetic Forces In the second of our two James Bond blogs, we continue the review of how 007 and his enemies utilise magnets and magnetic forces.  Our first blog concentrated on the eras of Sean Connery and Roger Moore, and in this blog we look at the movies […]

https://blog.e-magnetsuk.com/2017/11/20/magnets-featured-in-james-bond-movies-part-2/

Magnets Featured in James Bond Films Part 1

James Bond and his Enemies Utilising Magnetic Forces

Magnets and magnetic powers often make it into popular culture via the movies.  With all the gadgets and gizmos, James Bond has enlisted the help of the simple magnet on many occasions.  In the first of two blogs, we look at the movies in which Magnets took a starring role alongside Sean Connery and Roger Moore.

From Russia With Love (1963)

The 1963 movie was the 2nd in the Broccoli & Saltzman franchise, featuring Sean Connery as James Bond.  His attache case was the first of many state-of-the-art gadgets supplied by Q.  The leather case contained a magnetised tin of talcum powder concealing a tear gas cartridge.

from-russia-with-love-briefcase-talcum-powder

When the case was opened with the latches in the wrong position, the tear gas bomb exploded.  After being overcome by Spectre villain Donald ‘Red’ Grant (played by Robert Shaw) on a train returning to England, Bond has to rely on the teargas canister exploding in his adversary’s face when he opens the case.  In the ensuing hand-to-hand battle, Bond eventually strangles Grant with his own garrote.

Magnetically attaching the tin to the inside of the case is possible, although only weak Ferrite Magnets were available when the movie was made.

You Only Live Twice (1967)

Sean Connery’s 5th outing as James Bond was in a movie with a screenplay written by Roald Dahl.  In the movie, Bond is in a Toyota 2000 GT with with an ally Aki and being chased by a car-load of gunmen.  The beautiful head of the Japanese Secret Service, Tiger Tanaka, comes to his rescue.  Her large two-rotor helicopter has a gigantic electro-magnet, which is lowered onto the villain’s car, lifting them off the ground and then dropping them into the sea.

You Only Live Twice 10

Electro-magnets are used widely in the scrap metal industry and was clearly the inspiration for this gadget.  However, the weight of such an electro-magnet would be considerable, especially with the addition of a car.  Also, how the electro-magnet is powered is never made very clear.

Live and Let Die (1973)

In 1973 Roger Moore made his first appearance as James Bond.  In the movie, Bond wears a unique Rolex watch with many features.  As well as a small buzz saw built into the face, which Bond uses to free himself after being tied up, the watch has two magnetic properties.  Incredibly, the timepiece has a magnetic field that is powerful enough to deflect a bullet at long range.  However, it is the use of the magnet in his watch to unzip the dress of Miss Caruso is the one that is most remembered.  Bond attributes this to ‘sheer magnetism’.

live20and20let20die20magnetic205-1

In reality, it is difficult to comprehend how a magnet in a watch would deflect a bullet.  However, a Rare Earth Neodymium Magnet (which was not widely available at the time), may have some chance of unzipping a dress, although very unlikely.

Magnets in James Bond and the Real World

With the amazing advances in technology, many of the gadgets featured in early James Bond movies have now become reality.  Between 1963 and 2017, permanent magnet technology has evolved considerably, with Rare Earth Neodymium Magnets producing exceptionally strong magnetic forces.  In fact, without Magnets the world would be without mobile phones, wind turbines, and electric motors.

We just wonder when James bond will next need the help of a Magnetic Force.

For more information on Magnets or Magnetic Assemblies, please contact us on:

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the Bunting Europe website

Via the eMagnets online Magnet Shop

James Bond and his Enemies Utilising Magnetic Forces Magnets and magnetic powers often make it into popular culture via the movies.  With all the gadgets and gizmos, James Bond has enlisted the help of the simple magnet on many occasions.  In the first of two blogs, we look at the movies in which Magnets took […]

https://blog.e-magnetsuk.com/2017/11/06/magnets-featured-in-james-bond-films-part-1/

Bunting Launch New Neodymium Magnet at Sensors & Instrumentation 2017

Magnets and Magnetic Assemblies on the Bunting Stand

The latest in Magnet and Magnetic Technology will be on display on the Bunting Magnetics Europe stand (Hall 1, K19) at Sensors & Instrumentation 2017 (NEC, Birmingham, UK, 26th – 27th September 2017).

Bunting Magnetics is a world leader in the supply of Magnets, Technical Magnetic Assemblies, and Magnetisers.  The European manufacturing and design headquarters are based in Berkhamsted in Hertfordshire.

At the Sensors & Instrumentation show, Bunting is launching a range of sintered and Bonded Neodymium Magnets with direction of magnetism controlled to +/- 0.5 degrees.  This range of Magnets has been developed to provide integrators of Magnetostrictive position sensing offer more accurate and more compact systems.  When a typically linear position sensing has an accuracy proportionally to the angular error in an axially aligned ring magnet, magnets with a tighter specification significantly improve the performance.

Magnetic position sensing using Hall Effect devices or Anisotropic Magneto Restrictive sensors is a well-established method of contactless positional location of rotational or linearly moving components.  Multiple sensors offer very accurate resolution and are used extensively in many electronic and mechanical control systems.  Nearly all position and rotational sensors include a bespoke magnetising fixture, specifically designed to maximise the properties of the magnet.

The Bunting design and engineering team work closely with companies manufacturing and using sensors to develop magnetic assemblies with a focus on weight reduction, minimising false triggers, and performance.

A sensing application may range from a simple proximity switch (e.g. reed switch on a door or window security alarm) to encoder technology for motor control in automotive or aerospace applications.  The Bunting design team has worked on projects where sensors are required for detecting rotor positions, providing measurements (e.g. distances, speed or angle proximity), detecting fluid levels, and triggering switches.  These include magnets used to measure the level of fuel, contactless position sensing magnets, and magnets to sense speed.  A sensing application may range from a simple proximity switch (e.g. reed switch on a door or window security alarm) to encoder technology for motor control in automotive or aerospace applications.  Understanding the technical requirements of a magnetically contactless solution ensures the best design of Magnetic Assembly.

Many of the bespoke magnetising fixtures designed and manufactured by the Bunting team utilise a Bunting range of compression or plastic bonded Neodymium called BREMAG and BREMAG10N.  Plastic bonded magnets are often used due to their magnetic isotropy and advantage of being able to produce multipole (fine pole) magnetisation patterns for accurate position sensing.

Bunting Bremag Plastic Bonded Magnets

Both the BREMAG and BREMAG10N Magnet materials are manufactured in the UK and offer the highest energy (10, 10.5 and a World Leading 11MGOe) of all types of bonded magnets.  With the higher magnetic energy, this type of Neodymium Magnet is ideal for use in brushless DC motors, actuators and sensors.

For further information on the Magnets and Magnetic Assemblies that will be on show at the Sensors & Instrumentation 2017 exhibition, please contact us on

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the Bunting Europe website for specialist magnets and magnetic assemblies

Via the eMagnets online Magnet Shop

Magnets and Magnetic Assemblies on the Bunting Stand The latest in Magnet and Magnetic Technology will be on display on the Bunting Magnetics Europe stand (Hall 1, K19) at Sensors & Instrumentation 2017 (NEC, Birmingham, UK, 26th – 27th September 2017). Bunting Magnetics is a world leader in the supply of Magnets, Technical Magnetic Assemblies, […]

https://blog.e-magnetsuk.com/2017/08/30/bunting-launch-new-neodymium-magnet-at-sensors-instrumentation-2017/

Electric Vehicles Drive Up Rare Earth Magnets Prices

Prices of Neodymium Magnets Increase

The price of rare earth minerals, used in the production of Rare Earth Magnets such as Neodymium, is trading at nearly double the 2016 average (as of August 2017).  This alarming increase is believed to be driven by an expansion in electric vehicles and renewable energy.

Bunting Neodymium Magnets FamilyAt the end of 2010 and into 2011, the world was hit with a dramatic and unprecedented rise in the price of Rare Earths.  The annual price of Neodymium-praseodymium oxide rose from $50 per kg in 2010 to nearly $250 per kg.  Price validity for Rare Earth Magnets was being given in terms of hours rather and days or weeks, with significantly extended delivery times.  Although the price fell in the following years, partly due to China losing a World Trade Organisation case brought by the USA and other trading partners in 2015, it has never returned to pre-2011 levels.  The latest increase is the first since the major spike in 2011.

Tube Cartridge Magnets Bunting Magnetics-497% of the world’s Rare Earth minerals are mined in China.  Rare Earth minerals are a key component of many items that people use every day including mobile phones, computer hard-drives, and watches, but it is the increased demand from renewable energy and the recent focus on electric vehicles that has stimulated the sudden price rise.  Rare Earth Magnets are also used in the production of Magnetic Separators, which are used widely in the processing industry to remove tramp metal (e.g. food, chemical, pharmaceutical, plastics, mineral processing, etc) and to recover metals in recycling operations.

In electric vehicles, rare earth-based permanent magnet motors are preferred to induction motors as they are lighter and more powerful.  This extends the distance an electric vehicle can travel before recharging.Electric Car

Analysts from Argonaut Research estimate that there will be a 250% increase in the use of Rare Earth Magnet over the next 10 years.  This will be driven by electric vehicles and wind turbines.

It appears that the remainder of 2017 could be bumpy for buyers of Rare Earth Magnets such as Neodymium.  Although many suppliers of Rare Earth Magnets will be holding old stock purchases at a lower price, the increases will filter through to the end users very quickly.  The future is very uncertain.

For more information on Neodymium,  General Magnets and Magnetic Assemblies supplied by Bunting Magnetics Europe Ltd and via their online eMagnets UK shop, please contact us on:

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the Bunting Europe website for specialist magnets and magnetic assemblies

Via the eMagnets online Magnet Shop

Prices of Neodymium Magnets Increase The price of rare earth minerals, used in the production of Rare Earth Magnets such as Neodymium, is trading at nearly double the 2016 average (as of August 2017).  This alarming increase is believed to be driven by an expansion in electric vehicles and renewable energy. At the end of […]

https://blog.e-magnetsuk.com/2017/08/25/electric-vehicles-drive-up-rare-earth-magnets-prices/

Magnets, Quality and the Environment

Successful Transition to ISO9001:2015 and ISO14001:2015 for Bunting Magnetics Europe

Bunting Magnetics Europe Quality Assurance Manager, Denis Elkins, discusses the importance of successfully transitioning to the latest incarnations of the international standards for Quality (ISO9001:2015) and the Environment (ISO14001:2015).

Denis_Elkins_Bunting_Magnetics_Europe-2171

“Bunting has held the ISO9001 Quality Standard since May 2005 and the ISO14001 Environmental standard since February 2002.  Adapting our business operation to comply with the new standards proved to be a very positive process and has helped us make improvements.

At Bunting, we have always believed that the quality of our products, manufacturing processes, and business management is of utmost importance to us and our customers, and is one of the primary reasons for our continued success.

Through our Magnet and Magnetic Assembly divisions, whether designing bespoke magnetic components through Bunting’s Magnet arm or selling online through our e_Magnets UK shop, our customers rely on our ability to supply exactly what is specified and in the agreed time.  Many industrial sectors, such as the Automotive and Aerospace industries, insist that such standards and good controls are in place.

Every Neodymium Magnet or complex Magnetic Assembly that we design, manufacture and supply must comply with critical criteria that has been either stated or agreed with the customer.  Some of our Magnet designs are the result of months of work with the client, understanding their requirements and manufacturing a magnet-based component for a specific application.  This requires consistency of supplied product, design procedures, and manufacturing process.

We find that ensuring the management of our business complies with both the ISO9001:2015 Quality and ISO14001:2015 Environmental Standards is both positive and helpful.  And we are thrilled to announce our successful transition to the 2015 versions.”

For more information on Magnets and Magnetic Assemblies supplied by Bunting Magnetics Europe Ltd and through their online eMagnets UK shop, please contact us on:

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the Bunting Europe website for specialist magnets and magnetic assemblies

Via the eMagnets online Magnet Shop

For Reference

The ISO 9001:2015 Quality Standard was revised in 2015 and now has a definitive focus on business performance.  The process approach has been combined with risk-based thinking, promoting the Plan-Do-Check-Act cycle at all levels in the organization.  The new standard acknowledges that modern organisations will have several management standards in place, and the 2015 version has been designed to be easily integrated with other management systems.  The new version also provides a solid base for sector-quality standards (automotive, aerospace, medical industries, etc.), and takes into account the needs of regulators.

The ISO14001:2015 Environmental Standard sets out the criteria for a certifiable environmental management system.  It maps out a framework that a company or organization can follow to set up an effective environmental management system, regardless of its activity or sector.

Successful Transition to ISO9001:2015 and ISO14001:2015 for Bunting Magnetics Europe Bunting Magnetics Europe Quality Assurance Manager, Denis Elkins, discusses the importance of successfully transitioning to the latest incarnations of the international standards for Quality (ISO9001:2015) and the Environment (ISO14001:2015). “Bunting has held the ISO9001 Quality Standard since May 2005 and the ISO14001 Environmental standard since […]

https://blog.e-magnetsuk.com/2017/07/21/magnets-quality-and-the-environment/

A Compass Magnetically Shows The Way

The Interaction Between A Compass and the Earth’s Magnetic Field

When a kid is given a compass for the first time, they almost become mesmerised by the way the needle spins around every time they move.  No matter which way they go, the compass needle will always point in the same direction.

Horseshoe Magnets eMagnetsUK

The simple compass was invented over 2000 years ago in China, initially for divination.  The military of the Song Dynasty in China was the first to use it for navigational purposes in around 1040-44 and the first record of a compass being used for maritime navigation was between 1111 and 1117.

In Europe, the English scholar, teacher, theologian and abbot of Cirencester Abbey Alexander Neckhamwas the first to mention the use of a magnetic compass in texts written between 1187 and 1202.

How the Compass Works

The Magnetic Compass is a very simple but equally amazing navigational tool.  It consists of a small, lightweight magnet balanced on a nearly friction-less pivot point.  The magnet actually forms the ‘needle’ of the compass.  The end of the needle is usually marked with a ‘N’ for North or coloured red and is orientated in the Earth’s magnetic field.

How Does the Earth Have a Magnetic Field?

Although nobody apart from characters in the 1864 Jules Verne novel ‘Journey to the Centre of the Earth‘ have actually made it to the Earth’s core, the study of earthquakes, plate tectonics and volcanoes has enabled physicists to model the likely structure.

In the centre of the Earth is thought to be a solid iron core, which is around 60% of the size of the moon.  The iron is held in a solid state by the immense pressures.

Circulating around the iron core is a 2000km thick layer of molten iron, nickel, and small quantities of other metals.  This layer is only molten as the pressure is lower.

Within this layer there are convection currents caused by differences in pressure, temperature and composition.  The spinning Earth also causes the Coriolis force which causes swirling whirlpools of molten liquid.

The flow of liquid iron generates electric currents, which product magnetic fields.  At the same time, charged metals passing through these magnetic fields create electric currents of their own.  This self-sustaining process is called the Geodynamo Theory.  It is responsible for maintaining the earth’s magnetic field in which the kinetic energy of convective motion of the earth’s liquid core is converted into magnetic energy.

The North Pole Is Not True North

As with all magnets, a North Pole is attracted to a South Pole.  so why does the North Pole of a compass point to the North?  The In fact, our ‘North Pole’ is actually the South Pole of the Earth’s magnetic field.

Also, the magnetic North Pole lies around 1,000 miles south of “true north” in Canada.  To make things even more difficult for the explorer using a compass, the location of ‘Magnetic North’ changes and scientists have calculated that it has moved more than 620 miles towards Siberia.  However, charts of declination or local calibrations are used to ensure any travel is in the right direction.

Nevertheless, the compass is still one of the most widely used gadgets of all time.

For more information on Magnetic Fields or Magnets, please contact us on:

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the Bunting Europe website

Via the eMagnets online Magnet Shop

 

The Interaction Between A Compass and the Earth’s Magnetic Field When a kid is given a compass for the first time, they almost become mesmerised by the way the needle spins around every time they move.  No matter which way they go, the compass needle will always point in the same direction. The simple compass […]

https://blog.e-magnetsuk.com/2017/06/15/a-compass-magnetically-shows-the-way/

Health and Safety Advice for Magnets

Protecting Against the Dangers of Strong Magnets

The high magnetic strength of present-day Permanent Magnets, such as Rare Earth Neodymium, is vitally important in Computer Hard Drives, Audio Equipment, Motors, Door Catches, and even Jewellery.

However, there are also Health and Safety precautions that need to be taken when handling high strength Neodymium Magnets.  These precautions need to be considered both by manufacturers of products that incorporate these magnets and the General Public.

Health and Safety Magnet Hazards

For the General Public

  1. St_Jude_Medical_pacemaker_in_handPeople with Heart Pace Makers should avoid being near strong magnets.  In some situations, a Heart Pace Maker will stop working if placed within 30mm of a neodymium magnet;
  2. Strong magnets, especially neodymium magnets. should not be given to children.  Such magnets can attract forcefully onto any steel fascia (e.g. dishwasher or fridge door) and could trap or pinch the fingers of a young child.  Indeed, we strongly advise that all strong magnets are kept well out of the reach of young children;
  3. If strong magnets are placed close the the screen of a television, computer monitor, or analogue watch, the strong magnetic field can cause permanent damage;
  4. Strong Magnets may affect or interfere with sensitive electronic instruments and it is advisable to always keep magnets at a distance of at least 100mm;
  5. Magnets can destroy information stored on magnetic media such as credit cards, floppy discs and computer hard drives and should be at least 50mm away from a Magnet;
  6. It is recommended that magnets are not used by any women who is pregnant;
  7. Diabetics are advised not to ensure that high strength magnets are kept at a safe distance when using an insulin pump;

For Industry

  1. Modern Permanent Magnets can attract steel objects or other magnets from large distances and cause trapping injuries.  Place non ferrous (wood / polystyrene / plastic / aluminium) parts between magnets and any steel or other magnet to prevent this hazard;
  2. Many Magnets are brittle and may shatter if they are allowed to ‘jump’ together or onto a steel surface.  During the assembly of equipment with high strength magnets, it is always advisable to wear suitable eye protection;
  3. Do not use magnets in explosive atmospheres;

Magnetic-TherapyOf course, Magnets are also used for health benefits and are used widely in Magnet Therapy!

For more information on staying safe and healthy when using high strength ‘Rare Earth’ Neodymium Magnets, please contact us on:

Phone:  +44(0)114 276 2264

Email:  sales@buntingeurope.com

Via the Bunting Europe website

Via the eMagnets online Magnet Shop

Protecting Against the Dangers of Strong Magnets The high magnetic strength of present-day Permanent Magnets, such as Rare Earth Neodymium, is vitally important in Computer Hard Drives, Audio Equipment, Motors, Door Catches, and even Jewellery. However, there are also Health and Safety precautions that need to be taken when handling high strength Neodymium Magnets.  These precautions […]

https://blog.e-magnetsuk.com/2017/06/06/health-and-safety-advice-for-magnets/