Tuesday, March 26, 2013
Monday, March 25, 2013
Design Your Own Living Organisms With 3D Printing
Problem: Synthetic biology has the potential to create new organisms that could do an infinite number of things. But the cost of synthesizing DNA is currently prohibitively expensive.
Solution: Austen has developed a new technique to synthesize DNA 10,000 times cheaper than existing technology.
Technology: One of the big challenges with DNA synthesis is error correction during fabrication, fabricating the correct sequence of A, T, G and Cs. Austen solves this problem by fabricating billions of strands at once, quickly (and cheaply) optically sequencing them and then selecting the correct DNA sequences using a fast moving laser.
More On 3D Printing:
A 3-D Printer Will Soon Print You New Organs
3D Printing - A Revolution
Donkey Vs mountain Lion
A couple from Montana were out riding on the range, he with his rifle and she (fortunately) with her camera. Their dogs always followed them, but on this occasion a Mountain Lion decided that he wanted to stalk the dogs (you'll see the dogs in the background watching). Very, very bad decision...The hunter got off the mule with his rifle and decided to shoot in the air to scare away the lion, but before he could get off a shot the lion charged in and decided he wanted a piece of those dogs. With that, the mule took off and decided he wanted a piece of that lion. That's when all hell broke loose... for the lion.
As the lion approached the dogs the mule snatched him up by the tail and started whirling him around. Banging its head on the ground on every pass. Then he dropped it, stomped on it and held it to the ground by the throat. The mule then got down on his knees and bit the thing all over a couple of dozen times to make sure it was dead, than whipped it into the air again, walked back over to the couple (that were stunned in silence) and stood there ready to continue his ride... as if nothing had just happened.
Fortunately even though the hunter didn't get off a shot, his wife got off these 4...
Concept Plane: Supersonic Green Machine
Illustration Credit: NASA, Lockheed Martin Co.
What will passenger airplanes be like in the future? To help brain storm desirable and workable attributes, NASA sponsors design competitions. Shown here is an artist's depiction of a concept plane that has been recently suggested. This futuristic plane would be expected to achieve supersonic speeds, possibly surpassing the speeds of the supersonic transport planes that ran commercially in the late twentieth century. In terms of noise reduction, the future aircraft has been drawn featuring an inverted V wing stretched over its engines. The structure is intended to reduce the sound from annoying sonic booms. Additionally, future airplanes would aim to have relatively little impact on our environment, including green limits on pollution and fuel consumption. Aircraft utilizing similar design concepts might well become operational by the 2030s.
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