Tag: engineering

The Russian space agency has ordered the recall and inspection of every Briz-M upper stage used in their Proton rocket.

9:18 am

The Russian space agency has ordered the recall and inspection of every Briz-M upper stage used in their Proton rocket.

This is part of the on-going shake-up of the Russian rocket industry following the recent failures of the upper stage during several commercial launches. One interesting and positive note is that they expect to resume launches in October, which is extremely fast.

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India’s space agency celebrated its 100th launch today.

10:12 am

The competition heats up: India’s space agency celebrated its 100th launch today.

It is unclear whether the numbers include their failed launches. Regardless, India has a vibrant space program, modeled somewhat after the Russian system, a government space agency focused on gaining commercial market share. Whether that model can successfully compete in the commercial world remains unknown. Russia has had success, but only during a period when they were faced with few competitors. Now that the competition is heating up it is unclear whether Russia’s model will be flexible enough to compete.

What is clear about India, however, is that they are passionate about space exploration. Historically, even the Russian government model has worked when the country using it was the new kid on the block.

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Sign the LunarCOTS petition.

2:02 pm

Do you think the commercial space program led by SpaceX is the fastest and cheapest way for the U.S. to get humans back into low Earth orbit? Then why not do it for missions beyond Earth orbit?

The LunarCOTS petition is a campaign to have NASA subsidize private companies to design and build the United States’ future interplanetary missions rather than have NASA do it in big government programs like SLS. Makes sense to me, and so I signed the petition immediately.

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The Mars Reconnaissance Orbiter team today released a set of images showing Curiosity’s recent travel on Mars, as well as some fascinating closeups of the spacecraft’s heat shield, parachute, and descent stage.

4:47 pm

Curiosity's first steps

The Mars Reconnaissance Orbiter team today released a set of images showing Curiosity’s first steps on Mars, as well as some fascinating closeups of the spacecraft’s heat shield, parachute, and descent stage. The image on the left shows the tracks of the rover during its first few days of travel.

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The Forest Products Laboratory of the U.S. Forest Service has opened a $1.7 million pilot plant for the production of cellulose nanocrystals, which have the potential to be stronger, stiffer, and lighter than Kevlar or carbon fibers.

9:27 am

The Forest Products Laboratory of the U.S. Forest Service has opened a $1.7 million pilot plant for the production of cellulose nanocrystals, which have the potential to be stronger, stiffer, and lighter than Kevlar or carbon fibers.

It appears that the lab has been researching the useful properties of these nanocrystals, which is a good thing. However, I can’t help wondering why they are now building a production plant. Shouldn’t this be left to the private sector? What business is it of the Forest Service to be a producer of this product? It could be that the plant is aimed not at production but at figuring out how to make it affordable and practical, a goal that might make sense for a government agency to pursue. If not, however, it seems inappropriate for a government agency to use taxpayer dollars to run a facility aimed at selling a product to the private sector.

The article, as well as the lab’s webpage, do not make this clear.

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Scientists have determined that the shape of a beer glass can influence how much beer you drink.

6:40 pm

Science marches on! Scientists have determined that the shape of a beer glass can influence how much beer you drink.

After watching video of both sessions and recording how much time it took for the drinkers to finish their beer or sodas, Attwood’s team found that one group consistently drank much faster than the others: the group drinking a full glass of lager out of curved flute glasses. In a paper published this month in PLoS ONE, the team reports that whereas the group with straight glasses nursed their 354 milliliters of lager for about 13 minutes, the group with the same amount of beer served in curved glasses finished in less than 8 minutes, drinking alcohol almost as quickly as the soda-drinkers guzzled their pop. However, the researchers observed no differences between people drinking 177 milliliters of beer out of straight versus fluted glasses.

The last sentence reveals the large amount of uncertainty that surrounds this important research.

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Two astronauts completed an eight hour spacewalk today, extended because of problems with several stuck bolts.

3:05 pm

Two astronauts on ISS completed an eight hour spacewalk today, extended because of problems with several stuck bolts.

Williams and Hoshide initially progressed well through their tasks, but the astronauts struggled with difficult bolts when removing a faulty power box from the exterior of the space station, and then again when replacing the defunct unit with a new spare.

More information here. In the end they were forced to leave the replacement unit only temporarily attached because the bolts would simply not screw in. It was thought there might be debris in the screw holes.

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