Tag: engineering
China has unveiled the world’s longest sea bridge
China today unveiled the world’s longest sea bridge, stretching 26.4 miles and three miles longer than the previous record holder.
China today unveiled the world’s longest sea bridge, stretching 26.4 miles and three miles longer than the previous record holder.
Snapped connectors led to Indian rocket failure
Snapped connectors led to the failure last week of India’s GSLV rocket.
Snapped connectors led to the failure last week of India’s GSLV rocket.
NASA Wraps Up X-ray Scans of external tank
Updated and bumped: The inspections reveal four additional cracks on Discovery’s external tank.
NASA engineers have finished a series of x-ray scans of Discovery’s external tank.
Updated and bumped: The inspections reveal four additional cracks on Discovery’s external tank.
NASA engineers have finished a series of x-ray scans of Discovery’s external tank.
‘Zombie’ Satellite Comes Back to Life
“Zombie” satellite comes back to life.
“Zombie” satellite comes back to life.
Russian space officials fired over satellite crash
Russian space officials are fired over rocket failure.
Russian space officials are fired over rocket failure.
Hilarious Error Messages (31 pics)
Why I use Linux: Hilarious Windows error messages. This is typical:
Windows has detected that you have moved your mouse. Please restart your computer.
Why I use Linux: Hilarious Windows error messages. This is typical:
Windows has detected that you have moved your mouse. Please restart your computer.
Astronauts4hire taking applications
Want to become an astronaut? The private company Astronauts4Hire is taking applications.
Want to become an astronaut? The private company Astronauts4Hire is taking applications.
India’s geosynchronous rocket fails at launch
Bad news for India’s space program: It’s geosynchronous rocket, GSLV, failed today less than two minutes after launch. Key quote:
[The Indian Space Research Organization (ISRO)] has had a troubled past with GSLV, with only two of the seven launches so far claiming total success. Though ISRO claims that four launches had been successful, independent observers call at least two of them either failure or partial success. When it comes to launching its workhorse PSLV, ISRO has had 15 consecutive successes.
Bad news for India’s space program: It’s geosynchronous rocket, GSLV, failed today less than two minutes after launch. Key quote:
[The Indian Space Research Organization (ISRO)] has had a troubled past with GSLV, with only two of the seven launches so far claiming total success. Though ISRO claims that four launches had been successful, independent observers call at least two of them either failure or partial success. When it comes to launching its workhorse PSLV, ISRO has had 15 consecutive successes.
Flying on empty to a comet
Flying on empty to a comet.
Flying on empty to a comet.
China Matches U.S. Space Launches for First Time
The new colonial movement: For the first time China has matched the U.S. in space launches. Note that though the above article implies it, the U.S. has quite often not been the yearly leader in launches, as Russia has often topped the list. Nonetheless, with China now becoming more competitive the future of space travel can only get bettter.
The new colonial movement: For the first time China has matched the U.S. in space launches. Note that though the above article implies it, the U.S. has quite often not been the yearly leader in launches, as Russia has often topped the list. Nonetheless, with China now becoming more competitive the future of space travel can only get bettter.
A Martian eclipse
The hubbub about this week’s lunar solstice eclipse was, from my perspective, mostly manufactured press blather. For those who had never seen a lunar eclipse, it was a spectacular experience, but there really was nothing scientifically or technically unique about the fact that it happened to occur on the solstice.
However, below is an eclipse that is definitely unique both technically and scientifically. Scientists using the Mars rover Opportunity have filmed an eclipse on Mars, showing the Martian moon Phobos crossing in front of the Sun. Consider the engineering accomplishment: not only did they need to be able to calculate exactly when this would happen at a very particular spot on the Martian surface, they had to have a camera there able to take the movie. And they had to operate it from Earth!
SS2 Glide Tests Exceed Expected Progress
The glide tests of SpaceShipTwo have exceeded expectations, and are ahead of schedule.
The glide tests of SpaceShipTwo have exceeded expectations, and are ahead of schedule.
Solar Sail Flotilla Could Divert Possibly Dangerous Asteroid
Another scheme to stop a dangerous asteroid: Use a flotilla of solar sails to divert Apophis.
Another scheme to stop a dangerous asteroid: Use a flotilla of solar sails to divert Apophis.
How Close to the Sun could we get?
How close to the Sun could we get?
How close to the Sun could we get?
Flight to test the taste of beer in microgravity delayed until February
The first flight to test the taste of beer in microgravity has been delayed until February due to poor weather.
The first flight to test the taste of beer in microgravity has been delayed until February due to poor weather.
Electricity from wind plant so expensive no one will buy it
The electricity produced from a proposed wind plant will be so expensive the company can’t find customers. They do have one customer, however, but one wonders why:
In its 15-year deal, National Grid agreed to pay 18.7 cents per kilowatt hour for Cape Wind power beginning in 2013, with a 3.5 percent annual increase. The starting price is twice what National Grid pays today for power from fossil fuels, and regulators say the contract will add about 1.7 percent to its residential customers’ bills.
Read the whole article. It explains a lot about the failures of renewable energy, and how the efforts of the government and environmentalists to force it on us is misguided and downright foolish.
The electricity produced from a proposed wind plant will be so expensive the company can’t find customers. They do have one customer, however, but one wonders why:
In its 15-year deal, National Grid agreed to pay 18.7 cents per kilowatt hour for Cape Wind power beginning in 2013, with a 3.5 percent annual increase. The starting price is twice what National Grid pays today for power from fossil fuels, and regulators say the contract will add about 1.7 percent to its residential customers’ bills.
Read the whole article. It explains a lot about the failures of renewable energy, and how the efforts of the government and environmentalists to force it on us is misguided and downright foolish.
A team of explorers and scientists have today completed the first there-and-back crossing of Antarctica in wheeled vehicles.
A 10-man team of explorers and scientists today completed the first there-and-back crossing of the continent of Antarctica using wheeled vehicles. From the expedition blog:
We quickly took ourselves to the mess tent for some hot coffee and something which we had been craving for a while – Coca Cola. The feeling among the team was satisfaction and elation at what we had achieved and relief that the belt drive had held out! The first Expedition ever to travel coast to coast and back again, with the privilege of visiting the South Pole twice. We joked in the mess tent before deciding that we were not going to sleep and headed over to the Mechanic Area and back to the vehicles.
A 10-man team of explorers and scientists today completed the first there-and-back crossing of the continent of Antarctica using wheeled vehicles. From the expedition blog:
We quickly took ourselves to the mess tent for some hot coffee and something which we had been craving for a while – Coca Cola. The feeling among the team was satisfaction and elation at what we had achieved and relief that the belt drive had held out! The first Expedition ever to travel coast to coast and back again, with the privilege of visiting the South Pole twice. We joked in the mess tent before deciding that we were not going to sleep and headed over to the Mechanic Area and back to the vehicles.
Valve Leak Prompts ISRO To Delay Satellite Launch
A valve leak in the Russian-built upper stage of India’s GSLV rocket has caused India to delay the launch.
A valve leak in the Russian-built upper stage of India’s GSLV rocket has caused India to delay the launch.
Continuing problems with Boeing’s new airplane
What does this tell us about Boeing’s manned spaceflight efforts? The problems continue to pile up with Boeing’s new airplane, the 787 Dreamliner.
What does this tell us about Boeing’s manned spaceflight efforts? The problems continue to pile up with Boeing’s new airplane, the 787 Dreamliner.
Drop test of 15-percent scale model of private reusable spacecraft
Private meets government: Rather than build it themselves, NASA’s Dryden Flight Research Center merely provided support for a drop test of a 15 percent scale model of a reusable spacecraft being designed and developed by the new-space company Sierra Nevada.
Private meets government: Rather than build it themselves, NASA’s Dryden Flight Research Center merely provided support for a drop test of a 15 percent scale model of a reusable spacecraft being designed and developed by the new-space company Sierra Nevada.
Shuttle Tank test yields no initial clues to fuel tank cracks
The initial results from the tank test performed today on the shuttle external tank are as yet inconclusive.
The initial results from the tank test performed today on the shuttle external tank are as yet inconclusive.
Soyuz capsule docks with International Space Station
The Soyuz capsule, carrying the next crew to the International Space Station, has docked safely with the station.
The Soyuz capsule, carrying the next crew to the International Space Station, has docked safely with the station.
Cracked nozzled was possible cause of Japanese Venus probe failure
Engineers now think that a cracked nozzle caused the Japanese probe Akatsuki to miss Venus.
Engineers now think that a cracked nozzle caused the Japanese probe Akatsuki to miss Venus.
Tank tests today for cause of cracks in shuttle external tank
NASA will be conducting tank tests today on the Discovery’s external tank in an effort to find the cause of the recently discovered cracks.
NASA will be conducting tank tests today on the Discovery’s external tank in an effort to find the cause of the recently discovered cracks.
Russian mission control loses communications with ISS for three hours
This is more a kerfuffle in the press than a real emergency: for about three hours today Russian mission control had problems communicating with either ISS or the Soyuz spacecraft that is on its way to it. Neither spacecraft was in any danger during the down time.
This is more a kerfuffle in the press than a real emergency: for about three hours today Russian mission control had problems communicating with either ISS or the Soyuz spacecraft that is on its way to it. Neither spacecraft was in any danger during the down time.
Virgin Galactic to Join NASA Submissions for Orbital Spaceflights.
Virgin Galactic has confirmed the story from Space News that it is part of the crew/cargo proposal that Orbital Sciences submitted to NASA this week.
Virgin Galactic has confirmed the story from Space News that it is part of the crew/cargo proposal that Orbital Sciences submitted to NASA this week.
More evidence that the rim of Shackleton crater is valuable real estate
The image below was produced by Lunar Reconnaissance Orbiter by assembling data from numerous images over six months. The levels of brightness and darkness indicate the percentage of time in which an area is sunlight. The red dot just below the rim of Shackleton shows the approximate location of the south pole.
As you can see, the rim of Shackleton Crater nearest the south pole is illuminated by the sun most of the time, while the nearby crater floor never gets sunlight. This data confirms what Japanese scientists found using their lunar probe, Kaguya. The south pole has the ideal combination of locations with nearly continuous bright sunlight (to provide power) and nearly continuous darkness (where explorers will likely find significant amounts of frozen water), making this is an excellent location to build that first lunar base. And from the image you can see that the Shackleton Crater rim is not the only spot near the south pole with these conditions.
Also, if you look at the close-up image of Shackleton’s rim that I posted here, you will see that there is plenty of room to land and set up residence.
The flight of Falcon 9/Dragon: Doing it right
For those that want to relive the experience of success, SpaceX has posted a short highlight video of last week’s successful test flight of Falcon 9/Dragon capsule.
It is difficult to overstate the importance or magnifience of this achievement, accomplished not by a government but by a private company. As SpaceX rightly brags on its website:
This marks the first time a commercial company has successfully recovered a spacecraft reentering from Earth orbit. It is a feat previously performed by only six nations or government agencies: the United States, Russia, China, Japan, India, and the European Space Agency.
What I find even more telling is how quickly SpaceX got this done. The first launch attempt of their first rocket, Falcon 1, took place in March of 2006. About that same time they began work on Falcon 9, and were able to successfully fly its first mission only four years later. Contrast that with NASA. President Bush proposed building a replacement for the shuttle in 2004, and six years later all NASA could do was fly a mockup of Ares I/Orion, not the actual article. And that leaves out NASA’S numerous previous attempts to build a shuttle replacement that spent billions, and never did more than produce pretty powerpoint presentations.
SpaceX’s speed of operation (a sure sign of efficiency) is reminiscent of the early days of the space age. Then, NASA might have laid out the overall plan, but everything was built by private companies, all used to fighting for profits and market share. None could afford a leisurely pace, nor could they afford to do things badly. If they did either, their business would suffer. As a result, the United States was able to go from having no ability to put anything in orbit to putting its first man in space in less than three years, and was able to follow that up with the first manned lunar mission only seven years later.
ISRO: Indian agency set to launch heaviest satellite
After a string of failures going back to 2004, the Indian space agency is set to try to launch its most powerful rocket again, this time with its heaviest cargo.
After a string of failures going back to 2004, the Indian space agency is set to try to launch its most powerful rocket again, this time with its heaviest cargo.