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Atomic Magnetometer Could Have Biomedical, Navigation Applications

Measuring very small changes in the brain’s magnetic fields could lead to a better understanding of maladies such as epilepsy, post-traumatic stress disorder, and traumatic brain injury, but the equipment used for such measurements today is bulky and expensive. Scientists and engineers at the Georgia Tech Research Institute (GTRI) want to address that issue by creating a new generation of atomic magnetometers based on clouds of rubidium atoms. (more…)

Not Much Force: Berkeley Researchers Detect Smallest Force Ever Measured

By Guest PostOctober 14, 2014Sciencealbert einstein, atomic force microscopy, berkeley lab, carney complex, century old brains, christine hong, cloud, cushings disease, dan stamper kurn, dayoung song, dean ho, dennis spencer, detect, digitize supplychains, father of neurosurgery, finding secrets, force, general relativity, gravitational waves, joint venture, macroscopic scale, maersk, maya lodish, mechanical motion, nanometer, nathan brahms, rubidium atoms, sir isaac newton, sql, sydney schreppler, theory, thierry botter, vincent clerc

What is believed to be the smallest force ever measured has been detected by researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley. Using a combination of lasers and a unique optical trapping system that provides a cloud of ultracold atoms, the researchers measured a force of approximately 42 yoctonewtons. A yoctonewton is one septillionth of a newton and there are approximately 3 x 10²³yoctonewtons in one ounce of force. (more…)

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Atomic Magnetometer Could Have Biomedical, Navigation Applications

Not Much Force: Berkeley Researchers Detect Smallest Force Ever Measured