Ebb returns its first video of the far side of the moon
Ebb (of the Grail spacecraft) has returned its first video of the far side of the Moon.
Tag: engineering
The Japanese government has given the final go-ahead for a new Hayabusa asteroid sample return mission, set for launch in 2014.
The Japanese government has given the final go-ahead for a new Hayabusa asteroid sample return mission, set for launch in 2014.
Laser-guided bullets
Invented by engineers at the US government’s Sandia National Laboratories, the self-guided bullet homes in on a laser spot trained on a target from up to 1.4 kilometres away from its firing point. If the target is a moving truck, say, and it moves after the bullet is fired, the laser illumination as seen by a laser sensor in the bullet’s nose instructs the bullet to finely twist tiny rudder-like fins on its rear end to keep it on target.
The Great Moonbuggy Race
The Great Moonbuggy Race is an engineering competition that requires a team of six students to design a “proof-of-concept” wheeled rover that will race over a half mile of simulated lunar terrain. In April, two team members, one male and one female, will drive the completed vehicle in competition at the U.S. Space and Rocket Center in Huntsville, Alabama. This contest will present design challenges that are similar to those encountered by the original lunar rover team. This is the 16th year of competition for high school teams, but it will be the first year for Chicago’s public high school students.
The Russians have announced that the loss of Phobos-Grunt was due to the failure of an onboard computer to be properly hardened against cosmic rays.
The Russians have announced that the loss of Phobos-Grunt was due to the failure of an onboard computer to be properly hardened against cosmic rays.
The crash of the Rosat last fall might have landed on Beijing instead, had the spacecraft remained aloft a mere seven minutes longer.
The fall of Rosat last October, which ended up in the Bay of Bengal, might have instead landed on Beijing had the spacecraft remained aloft a mere seven minutes longer.
The Russians now say the next manned flight to ISS will be delayed a month, until the end of April, due to defects found in the Soyuz capsule.
The Russians now say the next manned flight to ISS will be delayed a month, until the end of April, due to defects found in the Soyuz capsule.
The story suggests some confusion over what caused the cracks, either defects to the capsule itself or a mistake in the testing process.
A commission set up to probe the setback said violations of the testing procedure caused the damage to the reentry vehicle incident, earlier reports said. Either excessive pressure was applied by the personnel, or the shell of the reentry vehicle had defects or was improperly welded up.
The highway is the tenant … and actually pays rent.
“The highway is the tenant … and actually pays rent.” With pictures.
How crayons are made
An evening pause:
“This re-entry capsule now cannot be used for manned spaceflight.”
“This re-entry capsule now cannot be used for manned spaceflight.”
This postponement of the next two Russian manned missions to ISS looks like a serious problem. For cracks to form in a finished capsule when tested under pressure suggests significant production failures that had gone unnoticed during assembly. In fact, this problem is far more serious than the launch failure that occurred last year. The Russians have to not only find a capsule they can trust to use on the next flight, they have to track down the errors that allowed a capsule to be built that is so obviously flawed it cracked when put in use.
The Vintage Computer Festival
Want to play with some old computers? You can, at the Vintage Computer Festival East 8.0.
The Soviet Union’s gigantic nuclear equipped Ekranoplane
The Soviet Union’s gigantic nuclear equipped Ekranoplane, rusting on the shores of the Caspian Sea. With pictures.
Equipped with nuclear warheads and able to blast across the sea at 340 mph, the Lun-class Ekranoplane; part plane, part boat, and part hovercraft — is a Ground Effect Vehicle (GEV). A GEV takes advantage of an aeronautical effect that allows it to lift off with an immense amount of weight, but limits its flight to 16 feet above the waves. Its altitude can never be greater than the length of the wings.