Zobrazeno 1 - 10
of 13
pro vyhledávání: '"L. O. Heflinger"'
Publikováno v:
American Journal of Physics. 69:702-713
Stable levitation of one magnet by another with no energy input is usually prohibited by Earnshaw’s theorem. However, the introduction of diamagnetic material at special locations can stabilize such levitation. A magnet can even be stably suspended
Publikováno v:
Applied optics. 17(6)
A high-speed cine-camera system utilizing holographic principles to circumvent the restrictive depth of field limitations of photomicrography is being used for behavioral studies of rapidly moving marine zooplankton. High resolution is achieved from
Publikováno v:
Nature. 400:323-324
The stable levitation of magnets is forbidden by Earnshaw's theorem, which states that no stationary object made of magnets in a fixed configuration can be held in stable equilibrium by any combination of static magnetic or gravitational forces1,2,3.
Autor:
Charles F. Kennel, D. Arnush, R. F. Wuerker, H. C. Kim, Roy W. Gould, John M. Dawson, Alfred Y. Wong, L. O. Heflinger, R. L. Stenzel, T. E. Romesser, Burton D. Fried
Publikováno v:
Physical Review Letters. 37:1547-1550
Selective ion-cyclotron-resonance acceleration of individual K, Ne, Cl, A, and Xe isotopes has been observed in plasmas of density 109 to 1011 cm^-3. Energy discriminating probes show good resolution of accelerated species in all cases. Mass spectrom
Publikováno v:
IEEE Journal of Quantum Electronics. 18:199-204
A direct method of observing the wavelength versus time of modulated single-mode GaAlAs lasers is described. The method uses a grating spectrometer and an avalanche photodiode and achieves resolutions of 0.01 A and 1 ns. Although the laser consists o
Publikováno v:
Journal of Applied Physics. 37:642-649
Publikováno v:
Applied Physics Letters. 7:92-94
Publikováno v:
SPIE Proceedings.
The SL‐3 flight on the NASA Space Shuttle will carry a 25 mW He‐Ne laser holographic recorder for recording the solution growth of Triglycine Sulfate (TGS) crystals under low‐zero gravity conditions. Three hundred holograms (two orthogonal view
Publikováno v:
AIP Conference Proceedings.
Publikováno v:
SPIE Proceedings.
Holography has two facets which make it a revolutionary scientific instrumenta-tion technique. The first capability is that holography can be used to circumvent photography's depth-of-focus problem for small objects in motion. The second is that meas