Curated Video
Magnetic Strength
We use two magnets and a set of scales to examine magnetic field and strength. One magnet is attached to the scales and a second is lowered towards it. When opposite poles are facing each other, the weight on the scales decreases as the...
Curated Video
Turbocor Chillers Explained - Oil free magnetic bearing HVAC
Turbocor chiller, learn how turbocor chillers work, the main components and centralised cooling systems. Dual impeller, variable frequency drive, VFD, IGBT, electronic expansion valve EEV, liquid level sensor, air handling unit AHU, fan...
National Institute of Standards and Technology
Operating Principles of the NIST 4 Watt Balance Source
The watt balance lets researchers determine the mass of an object indirectly by determining two quantities: the strength of the magnetic field, and the current running through a coil of wire.
Curated Video
How Microphones and Speakers Work: Electromagnetic Induction and Motor Effects
This video explains how microphones and speakers work by using electromagnetic induction and motor effects, respectively. The video goes on to describe the inner workings of a microphone, which includes a conducting coil attached to a...
Curated Video
The Fascinating World of Platinum: From Jewelry to Catalysts
Delve into the fascinating world of platinum, a noble and precious metal with numerous remarkable properties. From its resistance to corrosion and oxidation to its historical significance and modern-day applications, we uncover the...
Bloomberg
Australian Strategic Materials: Inquiries for Rare Earths Increasing
Mar.03 -- David Woodall, managing director of Australian Strategic Materials Ltd., discusses the demand-and-supply outlook for rare earths and his company's strategy. Australian Strategic Materials’ cornerstone Dubbo Project is a proven...
Veritasium
How Special Relativity Makes Magnets Work
Galileo established relativity, and Einstein developed the laws of special relativity to more fully explain physics. A brief video explains how special relativity relates to electromagnetism. Through simple illustrations, complex...