Observations and explorations of Venus
... measured during the 1961 conjunction, observed by radar from a 26 m antenna at Goldstone ... a high-temperature source (600 K). Strangely, millimetre-band observations made by A. D. Kuzmin ... and magnetosphere, as well as performing bistatic radar measurements of the surface. The 660 kg ... and multi-angle scattering (nephelometer) measurements of cloud density. It was discovered that the clouds ... nephelometer, mass spectrometer, gas chromatograph, and a cloud-droplet chemical analyzer using X-ray ...
http://en.wikipedia.org/wiki/Observations_and_explorations_of_Venus - 34k - Cached - Similar pages

Tank
... are designed to make a very dense cloud capable of blocking the laser beams of ... warning if the tank is targeted by radar systems that are commonly used to guide antitank weapons such as millimetre and other very short wave radar. Countermeasures Passive countermeasures, like the Russian Shtora ... further than reactive armour. An APS uses radar or other sensing technology to automatically ...
http://en.wikipedia.org/wiki/Tank - 115k - Cached - Similar pages

Vacuum tube
... called thermionic emission. The resulting negatively-charged cloud of electrons is called a space charge ... RF producers and still find use in radar, microwave ovens and industrial heating. Gyrotrons or ... vacuum masers, used to generate high power millimetre band waves, are magnetic vacuum tubes in ... for Bluetooth and Wi-Fi transmission, in radar and for satellite communication. Presently they are ...
http://en.wikipedia.org/wiki/Vacuum_tube - 49k - Cached - Similar pages