Europe’s ISS freighter launches successfully
Europe’s second ISS freighter, dubbed Johannes Kepler, launched successfully today.
Europe’s second ISS freighter, dubbed Johannes Kepler, launched successfully today.
Tag: engineering
Europe’s ISS freighter launches successfully
Why more railroad subsidies make no sense
Why high-speed rail makes no sense. Key quote:
High-speed rail would transform Amtrak’s small drain [on the government] into a much larger drain. Once built, high-speed rail systems would face a dilemma. To recoup initial capital costs — construction and train purchases — ticket prices would have to be set so high that few people would choose rail. But lower prices, even with favorable passenger loads, might not cover costs. Government would be stuck with huge subsidies. Even without recovering capital costs, high-speed rail systems would probably run in the red. Most mass-transit systems, despite high ridership, routinely have deficits.
Why high-speed rail makes no sense. Key quote:
High-speed rail would transform Amtrak’s small drain [on the government] into a much larger drain. Once built, high-speed rail systems would face a dilemma. To recoup initial capital costs — construction and train purchases — ticket prices would have to be set so high that few people would choose rail. But lower prices, even with favorable passenger loads, might not cover costs. Government would be stuck with huge subsidies. Even without recovering capital costs, high-speed rail systems would probably run in the red. Most mass-transit systems, despite high ridership, routinely have deficits.
The next flight of the Chinese manned spacecraft could last three weeks
China on the march! The next flight of their Shenzhou manned spacecraft could be a three week unmanned mission designed to test rendezvous and docking with their soon-to-launch Tiangong 1 space laboratory.
China on the march! The next flight of their Shenzhou manned spacecraft could be a three week unmanned mission designed to test rendezvous and docking with their soon-to-launch Tiangong 1 space laboratory.
The delay in the launch of the European cargo ship could delay the next Shuttle launch
The delay yesterday of the launch of the European cargo ship to ISS might also delay the next Shuttle launch.
The delay yesterday of the launch of the European cargo ship to ISS might also delay the next Shuttle launch.
The great wind scam
The great wind scam. Key quote:
“With demand for power at record levels because of the freezing weather, there have been days when the contribution of our forests of wind turbines has been precisely nothing,” wrote Richard Littlejohn in the Daily Mail Dec. 27. “It gets better,” Mr. Littlejohn continued. “As the temperature has plummeted, the turbines have had to be heated to prevent them from seizing up. Consequently, they have been consuming more electricity than they generate.”
The great wind scam. Key quote:
“With demand for power at record levels because of the freezing weather, there have been days when the contribution of our forests of wind turbines has been precisely nothing,” wrote Richard Littlejohn in the Daily Mail Dec. 27. “It gets better,” Mr. Littlejohn continued. “As the temperature has plummeted, the turbines have had to be heated to prevent them from seizing up. Consequently, they have been consuming more electricity than they generate.”
Florida Governor Joins Two More in Rejecting Federal High-Speed Rail Spending
The governor of Florida has joined two states in rejecting Obama’s proposed $53 billion federal high-speed rail program.
The governor of Florida has joined two states in rejecting Obama’s proposed $53 billion federal high-speed rail program.
Australian space beer ready for micro-gravity test
Australian space beer ready for micro-gravity test.
Australian space beer ready for micro-gravity test.
Computer Crushes the Competition on ‘Jeopardy!’
The computer has crushed the human champions in the second of three rounds of “Jeopardy!”
The computer has crushed the human champions in the second of three rounds of “Jeopardy!”
The launch of Europe’s freighter to ISS delayed one day
The launch of Europe’s freighter to ISS was scrubbed today. They will try again tomorrow.
The launch of Europe’s freighter to ISS was scrubbed today. They will try again tomorrow.
Stardust images of comet locate crater from Deep Impact’s impact
More news from Stardust: scientists have now identified what they think is the crater produced by Deep Impact’s impact in 2005. Key quote:
The images revealed a 150-metre-wide crater at the Deep Impact collision point that was not present in 2005. The crater is a subtle feature in the images, but it appears consistently in multiple views from the spacecraft. “So I feel very confident that we did find the [impact] site,” said mission member Peter Schultz of Brown University in Providence, Rhode Island, at a press briefing on Tuesday. The crater’s features are “subdued” rather than sharply defined, like those of craters made in hard materials like rock. “The message is: This surface of the comet where we hit is very weak,” said Schultz. The crater also has a small mound in its middle, indicating that some of the material thrown up by the impact was drawn by the comet’s gravity back down into the crater, he said: “In a way, it partly buried itself.”
More news from Stardust: scientists have now identified what they think is the crater produced by Deep Impact’s impact in 2005. Key quote:
The images revealed a 150-metre-wide crater at the Deep Impact collision point that was not present in 2005. The crater is a subtle feature in the images, but it appears consistently in multiple views from the spacecraft. “So I feel very confident that we did find the [impact] site,” said mission member Peter Schultz of Brown University in Providence, Rhode Island, at a press briefing on Tuesday. The crater’s features are “subdued” rather than sharply defined, like those of craters made in hard materials like rock. “The message is: This surface of the comet where we hit is very weak,” said Schultz. The crater also has a small mound in its middle, indicating that some of the material thrown up by the impact was drawn by the comet’s gravity back down into the crater, he said: “In a way, it partly buried itself.”
Stardust’s images of Comet Tempel 1
The images from Stardust’s flyby of Comet Tempel 1 are now available. I think the image below is the best, as it shows many details of the presently inactive comet surface. Scientists will need a bit of time now to compare these features with those imaged during the flyby of Deep Impact back in 2005.
In Jeopardy!’s Man Vs Machine the first round is a tie
It’s a tie after the first round of Jeopardy!’s computer vs human competition.
It’s a tie after the first round of Jeopardy!’s computer vs human competition.
How to Watch NASA’s Comet Tempel 1 Flyby
How to watch Stardust’s Comet Tempel 1 flyby tonight.
How to watch Stardust’s Comet Tempel 1 flyby tonight.
NASA Probe Set for Big Valentine’s Day Date With a Comet
While politicians argue budgets here on Earth, the NASA probe Stardust is zooming in on its flyby of Comet Tempel 1 tonight.
While politicians argue budgets here on Earth, the NASA probe Stardust is zooming in on its flyby of Comet Tempel 1 tonight.
Astronauts simulate Mars landing
Astronauts on the Russian Mars500 simulated Mars mission simulated a Mars landing on Saturday. Key quote:
Three astronauts on the Mars500 simulated mission will make a simulated walk on the Mars “surface” Monday. After working 30 days on the simulated planet, the crew will then embark on a simulated 240-day return trip to Earth. Officials said the 520-day Mars500 mission is designed to test how humans cope with the physical and mental stresses of a long space flight.
Astronauts on the Russian Mars500 simulated Mars mission simulated a Mars landing on Saturday. Key quote:
Three astronauts on the Mars500 simulated mission will make a simulated walk on the Mars “surface” Monday. After working 30 days on the simulated planet, the crew will then embark on a simulated 240-day return trip to Earth. Officials said the 520-day Mars500 mission is designed to test how humans cope with the physical and mental stresses of a long space flight.
SpaceX Announces Restructuring, Layoffs At Local Facility
SpaceX announced that it has laid off some employees at a Texas facility in connection with a restructuring plan.
SpaceX announced that it has laid off some employees at a Texas facility in connection with a restructuring plan.
Boeing and Indian Space Agency discussing possible Manned Mission
The new space race: Boeing and Indian space agency are discussing a possible manned mission.
The new space race: Boeing and Indian space agency are discussing a possible manned mission.
Station Partners Mull Extraordinary Photo Opp
An extraordinary photo opportunity: Use the Soyuz to photograph ISS next month when the shuttle and the Japanese and European cargo ships are all docked to ISS.
An extraordinary photo opportunity: Use the Soyuz to photograph ISS next month when the shuttle and the Japanese and European cargo ships are all docked to ISS.
How engineers entertain their dog
Counterfeit climbing gear
A warning to users of climbing and caving gear: Counterfeit Petzl equipment from China has been found on the market, and is dangerously defective.
A warning to users of climbing and caving gear: Counterfeit Petzl equipment from China has been found on the market, and is dangerously defective.
Orion spacecraft shipped to Lockheed’s Jeffco facility.
Even as Congress argues over NASA’s budget, Constellation marches on! The first completed Orion capsule was shipped from the factory yesterday to undergo tests.
Even as Congress argues over NASA’s budget, Constellation marches on! The first completed Orion capsule was shipped from the factory yesterday to undergo tests.
15 Ancient Mysteries That Aren’t So Mysterious
Fifteen ancient mysteries that aren’t so mysterious.
Fifteen ancient mysteries that aren’t so mysterious.
Cities of the future
More details on Ares/Ariane hybrid rocket
More details on Liberty, the Ares/Ariane hybrid rocket proposed by ATK and Alliant to provide crew/cargo capabilities to ISS. Key quote:
[Liberty] would be able to lift 44,500 lb. of payload to the International Space Station, enough for any of the commercial crew capsules under development as potential space shuttle replacements.
More details on Liberty, the Ares/Ariane hybrid rocket proposed by ATK and Alliant to provide crew/cargo capabilities to ISS. Key quote:
[Liberty] would be able to lift 44,500 lb. of payload to the International Space Station, enough for any of the commercial crew capsules under development as potential space shuttle replacements.
NASA Checks Shuttle Discovery for Damage From Dropped Tool
Oy. A metal tool came apart last night and its scattered pieces fell on the shuttle Discovery. Fortunately, careful inspection of the orbiter has found no damage.
Oy. A metal tool came apart last night and its scattered pieces fell on the shuttle Discovery. Fortunately, careful inspection of the orbiter has found no damage.
The Singing, Ringing Tree
Which Exoplanet to Visit?
Which exoplanet should we go to first?
Which exoplanet should we go to first?
Companies team up on new rocket
The competition to build rockets continues to heat up: A U.S. and European partnership is proposing its own new cargo rocket for NASA, using the Ares I first stage and the Ariane 5 second stage. Key quote:
Dubbed Liberty, the launcher looks similar to the Ares I rocket that was being developed for NASA’s Project Constellation, which was cancelled by the Obama Administration. For its first stage it employs the same advanced, five-segment version of the shuttle’s solid rocket booster. But in a move that significantly lowers development costs, the second stage of the rocket is based on the flight-proven core stage of Europe’s Ariane 5 rocket.
The competition to build rockets continues to heat up: A U.S. and European partnership is proposing its own new cargo rocket for NASA, using the Ares I first stage and the Ariane 5 second stage. Key quote:
Dubbed Liberty, the launcher looks similar to the Ares I rocket that was being developed for NASA’s Project Constellation, which was cancelled by the Obama Administration. For its first stage it employs the same advanced, five-segment version of the shuttle’s solid rocket booster. But in a move that significantly lowers development costs, the second stage of the rocket is based on the flight-proven core stage of Europe’s Ariane 5 rocket.
Falkirk Wheel
An evening pause: Some more cool engineering: how to move a boat eight stories from one canal to another. More here.