Atomic measurement
A team led by B Phillips and Paul Lett at the National Institute of Standards and Technology, Maryland, US, have observed the retardation effect, that is, the small but finite delay between the time an atom sends out an electromagnetic field and another feels it. They used a small sample of sodium atoms which were cooled to almost absolute zero temperature using laser cooling techniques. These ultra cold atoms were then bombarded with photons at very specific energies to see if the atoms bind together at large distances. This is the first report of the detection of retardation effect.
Related Content
- Electron spin resonance (ESR) dose measurement in bone of Hiroshima A-bomb victim
- Question raised in Lok Sabha on Power Generation from Nuclear Power Plants, 01/12/2016
- AERB nod to NPCIL to erect major equipment at Rajasthan N-power plant
- Bahir Dar tannery effluent characterization and its impact on the head of Blue Nile River
- China Regulators ‘Overwhelmed’ as Reactors Built at Pace
- Supreme Court dismisses plea to stall commissioning of Kudankulam nuclear plant