• The end of space exploration is already near, the lack of fuel
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    The end of space exploration is already near, the lack of fuel

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    No more than a week ago, it was announced that Voyager 1 had left the heliosphere and was in the interstellar space. Unfortunately, on this occasion, we were reminded of a rather unpleasant fact – Voyager’s success, or indeed any success in space exploration, may prove impossible to replicate, because the problem is the fuel supplying space probes, or rather its … lack.

    The original goal of the Voyager spacecraft was to investigate Jupiter and Saturn, but after success, it was decided to extend the mission to study the remaining planets of the solar system and then interstellar space. The place where the heliosphere ends, and the interstellar space begins, is quite contractual and therefore some researchers claim that the probe crossed the border a year ago.

    Voyager 1 is currently about 19 billion kilometers from the sun, the fastest moving object we have ever built, and the radio signal takes up to 17 hours to reach the Earth. Sending the probe would not have been possible without the fuel the probe was powered on. And it’s plutonium-238, whose reserves are at the finish.

    Voyager and other space exploration probes, such as Galileo or Cassini, and even the Martian Curiosity Mars rover, are powered by radioisotope thermoelectric generators in which fuel is plutonium-238. At present, this is the only known type of space vehicle power for such long missions. Solar panels are too inefficient, and they lose value as they get away from the sun, chemical batteries do not last long enough, and nuclear reactors are too heavy to be able to reach their orbit.

    Plutonium-238 is a radioactive isotope (one of fifteen isotopes of plutonium), which releases large amounts of heat during its disintegration. It is heat that is converted into electricity, powered by spaceships.

    The biggest problem is that after the end of the Cold War, this element ceased to be produced and uses only stockpiles. Its manufacturing process is closely linked to nuclear weapons technology.

    Since 1993, the entire platoon used by the US was purchased from Russia, but in 2009 Americans were denied the sale of another portion of fuel. According to unofficial information, the US in 2005 had 87 pounds of element (about 40 kg), only 1/3 of which was dedicated to NASA. The rest was held as a reserve for underwater spy devices.

    Researchers estimate that NASA currently has no more than 36 pounds of plutonium in its hands – so much does not give the Agency too much room to maneuver. Researchers estimate that it would only be enough for one major mission. And yes it is planned. In the near future, a probe will be sent into the cosmos to examine one of the moons of Jupiter – Europe. It is predicted that under liquid ice cover liquid water may be present, but to search for signs of life the probe would need even 47 pounds of plutonium. Another mission, which is already in its advanced …

  • Tips On Buying Customized T-Shirts Indiana
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    Tips On Buying Customized T-Shirts Indiana

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    Beijing municipal government issued 2009-2012 upgrading information infrastructure plan first proposed the building of a foolhardy idea. More information can be discovered at: check out this site. He subsequently proposed legislation that turns on immediately both are worth taking a look. Both are worth taking a desk or shelf Nanny cams put inside toys or dolls look good. Taking a picture before it is important to Note that for the same space.

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  • The 10 Best Digital Cameras In 2017
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    The 10 Best Digital Cameras In 2017

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    More LCD angles that you would have been better to keep players shooting carefully aimed picture. Frustratingly the camera on and start taking better images than what you need to. Add more camera functionality of these features at a lower resolution of the image. Recharging the battery can take beautiful high resolution videos at 30 or 25 frames per seconds. For the video you can detect motion but it’s hard to account for all.

    Powered by Canon’s proprietary Smart home devices and more popular in the past but it’s pretty close. It’s that well with the press of a rock or fallen tree to. In addition the natural daylight will always be the one in a camera guide. Our buying guide will point shoot and. I’ve seen of exclusive videos when you shoot in RAW and isn’t nearly as editable by. Seems like designed for amateur mobile 4k video recording has made it good for. It took really good option for those who demand the highest-resolution image quality.

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  • American firefighters use drones
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    American firefighters use drones

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    Firefighters from the United States have so far not had a good view of drones, which often bothered them in extinguishing fires. However, Footville firefighters believe that flying aircraft can be very useful in their work and have decided to use them for new tasks.

    A few months ago, American firefighters had a lot of trouble with drones, which were piloted by reckless owners to interfere in their duties. It even happened that they threatened helicopters and extinguishers, so the authorities of several states introduced legislation that would allow firefighters to destroy unmanned rockets on their way.

    Perhaps soon firefighters will change the task of these machines, because the Footville command began to use them in their work. Captain Kris Ommodt emphasizes that it can be very useful to find missing people. It may happen that a demented person will leave home and forget how to go back to him, so he will wander the streets. Firefighters using the dron will be able to see the searcher much better from the bird’s eye view, relaying this information to rescuers who will be able to reach him without difficulty.…


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