Tag

Magnetism

17/06/2021
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What metals do magnets attract to?

Several customers will contact our team of experts to enquire about what materials will our magnets stick to, as magnets will not stick to all metals. Understanding what metals are magnetic and then learning which metals are best for use in your applications is important. So, here at FIRST4MAGNETS we have decided to show you what magnets will and won’s tick to and explain the reasoning behind these answers. Metals that attract to magnets Metals that naturally attract to magnets are known as ferromagnetic metals; these magnets will firmly stick... Read More

09/06/2021
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Will a magnet damage my phone?

Anyone working with or near magnets will have been made aware of the many health and safety warnings regarding magnets. One warning has always been that you must keep magnets away from computers, credit cards, and even your phone. So, do magnets pose a threat to phones and other modern technology? If so, what threats do they pose and how strong must a magnet be to damage a phone, and what parts of the device would be susceptible to damage? The whole idea can be traced back to older pieces... Read More

12/05/2021
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What material is best for shielding a magnet?

Shielding a magnet or attempting to block a magnetic field is a subject that several of our customers approach our experts with on a regular basis, so we decided to examine what materials can be used to shield a magnet. Before learning how to shield a magnet it’s important to know that magnetic shielding does not block a magnetic field. No material can stop the lines of flux from travelling from a magnet’s north to its south pole. However, it can be redirected. The simplest example of this would be... Read More

14/04/2021
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Are Magnets stronger when side by side?

Does placing two magnets side by side double the pull force? We get questions like this from customers regularly about how different set ups of magnets will affect their performance. The answer truly to this question is it depends on the exact circumstances and set up you are using for your magnets. So, we decided to look and explain what the results would be when placing two magnets side by side. The pull force of two magnets side by side attracting to a steel plate can vary in several ways;... Read More

17/10/2013
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Animal magnetism – Nature’s own satellite navigation system

The Earth produces its own magnetic field, which emanates from its magnetic inner iron core. On the Earth’s surface the magnetic field is extremely weak compared to the permanent magnets used in many every day appliances. At the magnetic poles the Earth’s magnetic field is approximately 0.7 Gauss compared to the Gauss value of a relatively small 10mm diameter x 5mm thick N42 neodymium magnet which can reach 5100 Gauss. It is this magnetic field that makes a compass point north but for many species, the Earth’s magnetic field has... Read More

09/10/2013

4 Magnet Videos Which Will Blow Your Mind

Hi there. You may have guessed it, but I love magnets. I also love discovering awesome videos about magnets and luckily the web is full of magnet and physics videos. Here I highlight five of my favourites.

09/10/2013

Magnetism teaching resources

The Internet is full of useful information, including thousands of fabulous teaching resources created for every subject by teachers, schools and organisations. At first4magnets.com we are passionate about providing great, useful information about magnets for people young and old. Take a look at these free teaching resources we’ve put together. Please feel free to use and share 🙂