Yishai Zimmerman and his son-in-law Ronen Atzili are the winners of the "Technorush 2014" competition. Their device, driven by the power of a screwdriver, quickly rose to the top and earned them first place and a prize of NIS 10,000.
Yishai Zimmerman and his son-in-law Ronen Atzili are the winners of the "Technorush 2014" competition. Their device, driven by the power of a screwdriver, quickly rose to the top and earned them first place and a prize of NIS 10,000.
This year, the "Technorush" competitors were required to build a device that would climb to a height of 25 meters on an almost vertical rope, and then glide from this height while lifting a "space elevator" that hangs at the other end of the rope. Competitors are prohibited from using an energy source that includes combustion or any open flame.
This is the third time that Zimmerman participates in the competition, and the second time that Atzili participates in it. "My granddaughter was surfing the Internet and suddenly saw an advertisement about the competition," said the XNUMX-year-old Zimmerman, manager of the locksmith shop at Kibbutz Ein Harod, "and knowing me and my sporting spirit, she suggested that I participate."
"We took the idea of an engine-based-screwdriver from the world of plastic pipe production by pulling, when the material comes out of the extruder. In simpler words, it's an idea that comes from the world of plastics where I work."
And what will you do with the money? "We will finance the expenses of the current competition, and with what remains we will finance the expenses of next year's competition."
The competition is held in memory of the late Niv-Ya Durban, a graduate of the Technion and an outstanding student, and is sponsored by Dr. Robert Shilman ("Dr. Bob" by all), who paid off at the Technion.
Engineer Yuri Artsutanov, developer of the "space elevator" idea, was the guest of honor and one of the judges in the competition. He published the idea, which he developed following the scientist Konstantin Tsiolkovsky, at the end of the fifties. He came to the "Technorush" competition with funding from the Office of the Dean of Students and the Asher Space Research Institute and the foundation founded by the Norman and Helen Asher family from Chicago. This is his first visit to Israel. "The competition was fun and very entertaining," he said.
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I read about a space elevator in
http://en.wikipedia.org/wiki/Space_elevator
There is currently no material that allows the application of a cable to such an elevator that will not collapse. The researchers speculate that carbon nanotubes may provide such a future material. The elevator must be located exactly above the pole, because otherwise the cable will go around the earth in a loop and break.
Benjamin. First of all thank you. The following is not a defiance against you because your answers are correct, but because I have a feeling that there are not enough good reasons against the idea and the main reason is green and safety. Even in the matter of planes/submarines, the reactor cannot be maintained directly, except by computer. Today's technology makes it possible. Second, to raise lead into space is possible, raising a space station.
I also heard that if you create 2 sides and fill with water, good anti-radiation shielding is created - I'm not sure if it's possible. But rather
If you think about the limitations of our primitive technology, what is better to carry a gas station for a journey into space, to travel to Mars with a little fuel with the force of persistence, and the motion of the projectile thrown from the Earth, or to take a nuclear reactor with a core the size of an apple that will feed it for 13 years. It seems to me that the main factor preventing the spread of such technology is the fear of atmospheric pollution, but it also seems to me that there is no problem producing a reactor that will only be active in space.
To Yossi
There is more than one possible way to use a nuclear reactor for rocket propulsion.
But you have to remember that once the reactor starts working it will be impossible
maintain and repair it because of the radiation (radiation shields of miners
On earth they are made of lead and weigh accordingly and therefore are not
Practical in space, at least until a cost-effective method is found
more to put payloads into space).
In any case, this is a pioneering technique whose development is probably expensive
That is why it is not a magician for developers.
Can a cable that is 40000 km long and meters to tens of meters thick bear its weight and be stable?
Intuitively this sounds improbable, and I would be happy if someone explained in the article, because there have been quite a few here, how this is possible.
If the cable is like a building, then the height to cross-sectional area ratio, sounds like the cable will bend from its weight and break or collapse.
But since they deal with it endlessly, there must be something.
In addition, why is nuclear propulsion completely banned in space? I don't mean nuclear fuel but a nuclear reactor.
This is the closest thing to taking the fuel with you on the road, except that instead of a tank you can take an apple and it will be enough for 13 years. I understand that there are reasons for safety, but it seems that with simple logic it is possible to develop a reactor that only works in space, and that produces the energy needed for rocket propulsion. After all, this is about warming up, and maintaining momentum. I may be wrong and it is impossible to make rocket propulsion from a nuclear reactor
http://en.wikipedia.org/wiki/Nuclear_thermal_rocket