Sentences with phrase «radar signals off»

The altimeter measures sea surface height by bouncing radar signals off the ocean and timing their echo.

NASA scientists used giant, Earth - based radio telescopes to bounce radar signals off the asteroid as it flew past Earth on 31 October at 17:00 UTC (~ 5 pm GMT) at about 1.3 lunar distances (302,500 miles, or 486,800 kilometres) from Earth.

MIT's Millstone Hill Observatory's radar station in Westford, Massachusetts bounced radar signals off orbiting spacecraft for the 43 - meter to receive.

NASA scientists have used two giant, Earth - based radio telescopes to bounce radar signals off a passing asteroid and produce images of the peanut - shaped body as it approached close to Earth on 25 July.

Butler and two colleagues, Duane Muhleman of the California Institute of Technology and Martin Slade of the Jet Propulsion Laboratory, both in Pasadena, discovered Stealth by bouncing radar signals off Mars in 1988, when the planet's orbit brought it unusually close to the Earth.

So instead of bouncing radar signals off aircraft, ADS - B uses GPS signals to continuously broadcast a plane's identity, ground position, altitude and velocity to networks of ground stations and other nearby aircraft.

In the early 1960s, Shapiro proposed testing this by bouncing a radar signal off of Mercury when the planet was situated right next to the sun (from our Earthly perspective).

Not exact matches

The radar that Cruise uses to detect other cars on the road costs the company between $ 100 and $ 200 — it's similar to the Doppler radar your local news channel uses to bounce a signal off cloud formations and detect weather patterns.

Radar began with the observation that lightning gives off a radio signal, and Scottish engineer Robert Watson - Watt, working as a meteorologist, thought he could exploit this phenomenon to warn pilots of approaching storms.

Key to understanding the nature of the channels was the way Cassini's radar signal reflected off the bottoms of the features.

Radar signals bounced off a crater on the moon's south pole by the US Clementine spacecraft in 1994 hinted at the presence of water ice.

Radar signals were routinely reflected off rough, angled features such as sand dunes, cliffs and rocks, but when radar reached Titan's polar regions, regular signals ceRadar signals were routinely reflected off rough, angled features such as sand dunes, cliffs and rocks, but when radar reached Titan's polar regions, regular signals ceradar reached Titan's polar regions, regular signals ceased.

The researchers used radar signals bounced off the ground by satellites that measure how long the pulses take to return to space.

The fact that the radar signals could bounce off the sea bottom suggests that the seas were more transparent than expected and thus must contain mostly methane, not ethane.

The radar signals reflect off of birds and other animals flying through the air.

The signal bounced off the asteroid, and its radar echoes were received by the National Radio Astronomy Observatory's (NRAO) 100 - meter (330 - foot) Green Bank Telescope in West Virginia.

On May 3, 2007, team of astronomers (including Jean - Luc Margot; Stan Peale; Igor V. Holin; Raymond F. Jurgens; and Martin A. Slade) announced new evidence that Mercury has a partially molten core using new observations of fluctuations in Mercury's spin obtained with radar signals bounced off the planet from Earth (with the 305 - meter Arecibo, the 34 - meter Goldstone, and the 100 - meter Robert C. Byrd Green Bank radio telescopes).

If the radar system identifies a slower - moving vehicle ahead, it sends a double impulse through the «haptic accelerator pedal» to signal to the driver to take their foot off the accelerator.

It can get better signal by using radar [and sending and bouncing a stronger radio signal off the target].