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#721 |
Captain Kick Ass
Join Date: Sep 2001
Location: Kansas
Casino cash: $9305197
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Battery improvements have been bouncing around quite a bit lately. I'm hopeful that there's a lot at the end of this tunnel. Kick ass batteries would completely change everything.
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Posts: 5,781
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#722 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
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Another really cool link about a manned mission to Mars. Explaining how we'd get there, and potentially terraform it.
![]() There's too much to copy, so visit the link if you're interested: http://scienceblogs.com/startswithab...uclear-fusion/
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Posts: 48,142
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#723 | |
MVP
Join Date: Mar 2012
Location: Sydney, Australia
Casino cash: $6148501
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Posts: 13,752
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#724 |
NFL's #1 Ermines Fan
Join Date: Jul 2001
Location: My house
Casino cash: $2008491
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As a potential applicant, the fact that this sentence fragment exists in the article is worrisome.
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Active fan of the greatest team in NFL history. |
Posts: 142,434
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#725 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
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Ever wondered why rubbing alcohol burns?
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Posts: 48,142
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#726 |
"You like to drink?"
Join Date: Jun 2006
Location: "I like to drink."
Casino cash: $1946869
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Still need moar magnetic field
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Chiefs 2016 Opponents: Home: JAX, TEN, NO, TB, NYJ. Away: HOU, IND, ATL, CAR, PIT Chiefs 2017 Opponents: Home: BUF, MIA, PHI, WSH, AFC North. Away: NE, NYJ, NYG, DAL, AFC South |
Posts: 43,637
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#727 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
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Cold welding. Weird shit happening in space...
![]() Cold welding is a bonding process where two items are combined into one through means of intense pressure that is applied by dies and rolls. As the name implies, this technique does not rely on heat to change the state of the items being bonded—these substances remain in a solid state throughout the procedure. Not all metals make ideal candidates for cold welding due to the oxygen content within their outer layers, and even after extended brushing and cleaning, the metals will not bond if one of them is not malleable. Likewise, if the two bonded pieces are later exposed to an oxygen-rich environment or certain other reactive compounds, the cold weld will fail. Due to these limitations, the process of cold welding is most suitable for objects that will be deployed outside of the earth’s atmosphere, such as satellites or spacecrafts. Cold welding was initially discovered by modern societies in the early 1940s and thought of as a new phenomenon, but this process has actually been in existence for thousands of years. It was learned that two pieces of similar metals will bond together inside a vacuum as long as they possess clean, flattened surfaces and a strong initial force can be applied. During the process, deformities occur across 60 to 80% of the bonding surface, and this allows pure, clean metals to come in contact. Permanent bonding then takes place on the atomic level, with welds much stronger than what could be accomplished by other means. Another advantage is that there are absolutely no intermediary materials used as a type of solder, so as long as oxides are not allowed to reform across the metal’s surface, it should last for decades. Since the initial discovery period, researchers have shown that cold welding can also be accomplished without excessive force. By applying less pressure over a longer period of time, similar results can be achieved. Another method is to increase the surface temperature of the two materials being bonded for a short period of time to accelerate the molecules. Modern uses for cold welding are numerous, but it is still definitely considered a situational process due to the aforementioned limitations. The technique makes it possible, however, to work in many hostile environments that were previously impossible, like welding underground pipelines that carry flammable gasses. Another setback is that since the weld takes place quickly and is considered permanent, it is very difficult to verify the integrity of the weld, especially in thicker metals.
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Posts: 48,142
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#728 |
(Sir/Yes Sir/Aye Aye Sir)
Join Date: Oct 2009
Location: Diving
Casino cash: $2615380
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And, for those of you who might want to watch the awesome engineers and scientists of the future, one of the big gatherings/competitions is going on in St. Louis this week. You can watch live here, or head over to NASA TV too..
http://www.theredalliance.com/livefeeds.html
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. #J24 #Kameltoe Is A Joke Of A VPOTUS and POTUS Candidate #President Trump loves and supports the constitution #McCarthy is a Sellout and Traitor to America #TheFBLieIsCorrupt #DefundTheFBI #The FBI Is Not The Police #PresidentBidenIsMoronic #LizCheneyGotTheBoot #FJB #80,000,000 Mules (and a few Americans too) Voted For COVID To Continue #I still don't have COVID |
Posts: 118,129
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#729 | |
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Join Date: Jan 2009
Casino cash: $1175743
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Quote:
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Posts: 64,130
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#730 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
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Says who? Aren't you going to cryo store your brain?
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Posts: 48,142
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#731 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
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Today is National DNA day. Here's how to extract your own DNA.... you know.. if you're into that kind of thing...
![]() http://learn.genetics.utah.edu/conte...raction/howto/
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Posts: 48,142
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#732 |
MVP
Join Date: Mar 2012
Location: Sydney, Australia
Casino cash: $6148501
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Posts: 13,752
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#733 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
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How far away do you think the moon is? Chances are, you're wrong. I was.....
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Posts: 48,142
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#734 |
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Join Date: Jan 2009
Casino cash: $1175743
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Heh, no way I figured you could fit even one earth between Earth and the Moon. Looks like you can fit at least 25.
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Posts: 64,130
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#735 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
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Want a free science class?
Yale, Stanford, MIT, Cornell, and many other universities around the world have introduced free open courses in subjects like physics, biology, and chemistry. In many cases, there is a semester’s worth of recorded lectures, along with exams to test your knowledge. If you have ever wanted an Ivy League science education, here’s your chance! Complete list here: http://bit.ly/10OPhfE ![]()
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