Getting Bent | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

Monday

Tuesday

Wednesday

Thursday

Friday

Airborne On ANN

Airborne 08.31.15

Airborne 09.01.15

Airborne 09.02.15

Airborne 08.27.15

Airborne 08.28.15

Airborne Hi-Def On YouTube

Airborne 08.31.15

Airborne 09.01.15

Airborne 09.02.15

Airborne 08.27.15

Airborne 08.28.15

EAA/ANN AirVenture Innovation Preview

AIP-#1 Vimeo

AIP-#2 Vimeo

AIP-Part 1 YouTube

AIP-Part 2 YouTube

Mon, Apr 05, 2004

Getting Bent

NASA Orbital Experiment To Test Einstein's Theory

When Gravity Probe B was first proposed by NASA, Dwight D. Eisenhower was president. Cuba was still considered a friendly country and Vietnam was a place few Americans could point to on a map. Manned space flight was still an unrealized dream.

Now, 45-years later, Gravity Probe B is finally being prepared for lift-off at Vandenberg AFB (CA). It's mission: test two linchpin theories first proposed by Albert Einstein. In 1916, Einstein figured a planet like Earth could actually mold and twist the fabric of space and time. Think of a lead weight resting in the middle of a soft mattress and you'll get an idea of what he had in mind. That very effect, he proposed, is directly responsible for gravity.

Since 1959, the probe has survived -- barely, in some cases -- cancellation, technical problems and launch delays. But April 17th, Gravity Probe B will finally launch.

The probe is built around four perfectly spherical balls, about the size of ping-pong balls. They're made of quartz and touted as the most perfect spheres ever created by man. They're packed in vacuum thermoses and cooled to near absolute zero.

Here's how Stanford University puts it: "The experiment will check, very precisely, tiny changes in the direction of spin of four gyroscopes contained in an Earth satellite orbiting at 400-mile altitude directly over the poles. So free are the gyroscopes from disturbance that they will provide an almost perfect space-time reference system. They will measure how space and time are warped by the presence of the Earth, and, more profoundly, how the Earth's rotation drags space-time around with it. These effects, though small for the Earth, have far-reaching implications for the nature of matter and the structure of the Universe.

FMI: http://einstein.stanford.edu

Advertisement

More News

Aerospace Update: Swiss Team Wins Gordon Bennett Balloon Race

The Swiss Team of Kurt Frieden And Pascal Witprächtiger Won The 59th Coupe Aéronautique Gordon Bennett Competition The Coupe Aéronautique Gordon Bennett, the FAI>[...]

ANN's Daily Aero-Linx (09.03.15)

NASA JPL Education Site The Education home page for NASA JPL is the perfect place for parents and teachers to find activities for a budding rocket scientist, engineer, technician, >[...]

ANN's Daily Aero-Term (09.03.15): Magnetic Variation

Difference between true north and magnetic north, varying with position; magnetic variation drifts with time.>[...]

Aero-News: Quote Of The Day (09.03.15)

“We want this to be a gateway to aviation, and for the existing industry to embrace these craft.” Source: AUVSI president and CEO Brian Wynne.>[...]

Woman Who Suffered From Septic Shock Skydives For First Time

Jump Follows Amputation Of Both Hands And Feet, Done To Raise Awareness Of The Condition A woman in Oklahoma who lost both hands and feet to septic shock last year has done somethi>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2015 Web Development & Design by Pauli Systems, LC