A brief history of pulsar time
Article Abstract:
Occasional sudden jumps in the frequency at which a pulsar emits its signal have prompted theories of neutron stars' internal structure that would account for the irregularities. A.G. Lyne and his colleagues hypothesize that a neutron star may have four distinct zones that rotate at different rates. The glitches would then result from friction between the zones and conservation of angular momentum.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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Observation of laser-induced fluorescent cooling of a solid
Article Abstract:
The ytterbium-doped heavy-metal-fluoride glass can be cooled by passing fluorescent radiations through it. The glass is cooled by radiating with a continuous-wave-titanium-sapphire high-efficiency diode laser. The temperature of the solid equilibrates on 15 minutes of radiation. The cooling efficiency of this method is 10,000 times that of the Doppler gas cooling method.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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