Archive for Magnets

Endo Magnets hang up to 1-lb objects on your fridge

Posted in Magnets by Conner Flynn on January 23rd, 2009

Endo Magnets hang up to 1-lb objects on your fridgeIf you’ve ever experienced your share of weak magnets, you can appreciate a good strong magnet. Ever had a magnet on your fridge holding a sheet of paper that is so weak, that you walk by and both magnet and paper fall to the floor? Or a magnet that won’t even fix two or three pieces of paper to the fridge? It’s those little annoyances that we could all do without.

These Endo magnet clips will do the job. Hell, if you want to put a heavy shoe on your fridge, you can. And it will stay. In fact, they can bear a load of 1 LB. Holds 20 sheets of paper. You could even hang up some of your gadgets and keep them organized. Just clip them in place. I’m not saying it’s a good idea to be hanging shoes on your fridge, but it’s nice to know you can.

Nobel prize for physics awarded to small drive technology

Posted in Magnets,News,Science by Darrin Olson on October 10th, 2007

Nobel prize in physics awarded to Albert Fert and Peter Grünberg for Giant Magnetoresistance which helped make smaller hard drivesThe 2007 Nobel Prize for physics was awarded joinlty to French physicist Albert Fert (pictured left) and German physicist Peter Grünberg for their work in magnetoelectronics, also known as spintronics. The two each made independent discoveries of magnetoresistance back in the 80′s, which uses the spin of electrons to store and transport information instead of using an electrical charge. This discover allows more data to be stored in a smaller physical space and in under a couple decades led to radically smaller hard drives for common items such as laptop computers, smartphones and iPods.

Ferrofluid Art

Posted in Magnets by Chetz on April 7th, 2007

Ferrofluid ArtThe idea behind ferrofluid is to take a liquid that has magnetic properties and introduce a magnetic current through it. The field will then interact with the fluid, pulling and pushing it along the lines of current. When it’s in motion ferrofluid is an amazing thing to look at as it twists and distorts in patterns, looking almost like it’s some kind of alien life form related to The Blob.

It probably should come as no surprise that someone has combined ferrofluid with music and created a new form of art. Morpho Towers: Two Standing Spirals is an art installation where the ferrofluid moves independently to the music and not under human direction. The result looks like a pair of Christmas trees that the T-1000 from “Terminator 2: Judgement Day” might own as branches and spikes appear on the “trunks”, break off and reform as the …

Barrel Toroid is Largest Superconducting Magnet

Posted in CERN,Magnets,Science by Paul Patterson on December 31st, 2006

The ATLAS DetectorThis is the ATLAS Detector, home of Barrel Toroid – the largest superconducting magnet ever built. The barrel-shaped magnet provides the magnetic field for ATLAS, a particle detector at CERN1′s Large Hadron Collider (LHC).

The Barrel Toroid consists of eight precisely aligned rectangular-shaped superconducting coils measuring 5m wide, 25m long and weighing 100 tonnes. The magnet will be used in ATLAS to bend the paths of charged particles produced in collisions at the Collider.

The goal of ATLAS is to answer questions like: why particles have mass, what is the unknown 96% of the Universe made of, and why Nature prefers matter to antimatter.

The magnet was recently powered up to its nominal operating conditions on the first attempt. Still in development by over 1800 scientists from 165 universities and laboratories, the new particle accelerator is scheduled to turn on and start taking data in …

Charge Your Gadget Batteries With No Wires

Posted in Magnets,News by Darrin Olson on November 15th, 2006

 Marin SoljačićTuesday at the Industrial Physics Forum in San Francisco, Marin Soljačić, assistant professor at MIT, along with colleagues presented an approach to power and/or charge electronic devices wirelessly from a couple of meters away.

The idea is that there would be some type of base station that the devices would need to be in proximity of to receive the transfer of energy through the air. The base station would be plugged into a regular electrical outlet, or “holes” to you old Seinfeld fans. The base station would then emit some low-frequency electromagnetic radiation around the base. The radiation would be at a specific frequency that would need to be matched by some type of circuitry component inside the gadget that would receive the power, and when the base and the component get close to each other resonating at the same frequency, the component could …

Ferrofluid – A Magnetic Liquid

Posted in Magnets by Darrin Olson on August 31st, 2006

FerroFluidThis picture caught my eye and was so cool I just couldn’t resist posting about it. This is a liquid called FerroFluid. What you are looking at is a 3-D representation of a magnetic field revealed by this magnetic fluid. To get a really good look at this, check out this Google Video of Sculptures with Ferrofluid.

The fluid is basically made up of very small (nano-small) particles of ferromagnetic material. Ferromagnetic items are the same type of magnets you would find on your refrigerator, except these are obviously much smaller. They are usually suspended in water, and something interesting is that although they are a common type of magnet, they do not retain their magnatism on their own, only when an external magnatism is applied. That is what gives them the ability to display the external magnetic field so well.

Ferrofluids are not uncommon in …