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Old 12-26-2013, 05:12 PM   #1841
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Re: The Official Science Thread

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^ The stuff you dig up.
www.reddit.com/r/physics

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Old 01-03-2014, 02:57 PM   #1842
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Using sound waves for levitation...?

http://www.wired.com/design/2014/01/...h-sound-waves/

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Old 01-22-2014, 08:01 PM   #1843
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Good to see NASA is (kind of) keeping up with SpaceX

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Old 01-22-2014, 10:55 PM   #1844
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Are you aware that a lot of the work being done by Boeing, SpaceX and Sierra Nevada is not in competition with NASA/JPL, but at their behest?

http://commercialcrew.nasa.gov/page.cfm?ID=38

The nature of NASA has and continues to change. The shift towards private companies doing the tech development that NASA puts into use, as opposed to NASA developing tech themselves, is intentional on their part.

Maybe you know this already, but from your "keeping up" comment, I just want to be sure you understand the organizational relationships.
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Old 01-26-2014, 08:57 AM   #1845
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Old 01-26-2014, 09:00 PM   #1846
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Old 01-27-2014, 11:47 AM   #1847
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Memory formation has been observed for the first time
http://www.einstein.yu.edu/news/rele...into-memories/
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Old 01-27-2014, 02:32 PM   #1848
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Mind blown..... great thread bump
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Old 02-16-2014, 11:52 PM   #1849
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The OP may not consider this science, but I thought it was interesting........he says Human is not a 'thing' , it is a shape.

----------

Moeetheory the dream of existence and life.
Already spreading vary quickly across the world changing ideas, views, opinions, facts, and possibilities.

Moee is a vast amount of data of information channeled through a series of incredible dreams written down. Moee Includes over 3000 pages of strange mathematical equations, existence charts, technology's, creation charts and more, covering subjects from science religion history and humanity and the unknown.

One night a normal everyday person had a life altering dreams, dreams so different that it literately changed his intelligence and life overnight. This dream started a series of dreams in which this person accumulated thousands of pages of information on existence and life including subjects that were far beyond his own knowledge understanding or education.

This dream created M.O.E.E.= Matter Organic Energy Element ,
Some of the information is shocking and controversial some is known and much is unknown. Moee does not discredit religion history humanity or science but it will open your mind to some shocking conclusions ideas and possibilities.

Ever ask yourself,
"why am I here? What is a human? How does life work? Is there life after death? What is space? Are we alone? Are gods real ? These are some of the questions that Moee goes into. Moee provides a lot of information on some of the hardest questions and understandings of life and existence. From micro life to gods, it breaks down these questions with shocking scientific explanations conclusions idea's possibilities and facts.




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Old 02-19-2014, 08:12 AM   #1850
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See better by training with an app; there's a study to back up the claim.
http://www.popularmechanics.com/scie...rther-16506910



If you don't want to pay $7 and/or don't have iOS here are links to some clones
http://www.reddit.com/r/science/comm...p_that/cfiwf7p
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Old 03-03-2014, 11:31 PM   #1851
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The Mammoth Cometh

Bringing extinct animals back to life is really happening - and it's going to be very, very cool. Unless it ends up being very, very bad.

http://www.nytimes.com/2014/03/02/ma...meth.html?_r=0
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Old 03-03-2014, 11:34 PM   #1852
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How Realistic Is Cloning a Woolly Mammoth?

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It is unlikely that a mammoth could be cloned in the way we created Dolly the sheep, as has been proposed following the discovery of mammoth bones in northern Siberia. However, the idea prompts us to consider the feasibility of other avenues. Even if the Dolly method is not possible, there are other ways in which it would be biologically interesting to work with viable mammoth cells if they can be found.

In order for a Dolly-like clone to be born it is necessary to have females of a closely related species to provide unfertilised eggs, and, if cloned embryos are produced, to carry the pregnancies. Cloning depends on having two cells. One is an egg recovered from an animal around the time when usually she would be mated.

In reality there would be a need for not just one, but several hundred or even several thousand eggs to allow an opportunity to optimise the cloning techniques. The cloning procedure is very inefficient. After all, after several years of research with sheep eggs, Dolly was the only one to develop from 277 cloned embryos. In species in which research has continued, the typical success rate is still only around 5% at best.

Elephant Eggs

In this case the suggestion is to use eggs from elephants. Because there is a danger of elephants becoming extinct it is clearly not appropriate to try to obtain 500 eggs from elephants. But there is an alternative.

There is a considerable similarity in the mechanisms that regulate function of the ovaries in different mammals. It has been shown that maturation of elephant eggs is stimulated if ovarian tissue from elephants is transplanted into mice.

In this way it might be possible to obtain a considerable number of elephant eggs over a period of time if ovarian tissue is obtained from elephants that die.

Cells from mammoths are required to provide the genetic information to control development. The suggestion is to recover cells from the marrow of bones emerging from the frozen north of Siberia. However, these cells will degenerate rapidly at the temperature of melting snow and ice. This means that cells in the bones may well become useless for this capacity as they thaw.

The chances of cells being viable would be increased if bones could be recovered from the lowest possible temperature rather than waiting until they emerge from snow. The cells can then be warmed rapidly. Alternatively, the nuclei could be transferred directly into eggs.

The very first stages of embryo development are controlled by proteins that are in the egg when it is shed by the ovary. One for example has a critical role in cell division. Together these proteins have an extraordinary ability to repair damaged nuclei so it may not be strictly necessary for the cells to be viable. It would be best if the mammoth nucleus could be introduced into an egg immediately, by injection of the contents of the damaged cell into the egg.

Research in 2008 found that when nuclei from freeze-dried sheep cells were transferred into eggs, some of the cloned embryos developed for a few days, but not to term. This was a very clear indication of the ability of the egg to repair damaged nuclei. However, freeze-dried cells are likely to be more stable than those that have been frozen with liquid still present. In the case of the mammoth, the cells would likely be killed by large ice crystals formed from the liquid.

Finally, if embryos that developed normally for a few days could be produced, they would have to be transferred to surrogate mothers to develop through pregnancy. Embryo transfer is only carried out routinely in fewer than a dozen species, and the elephant is not one of them. Success in embryo transfer depends upon introducing the embryo to a womb that is in a receptive state. The mechanisms that bring about this state in elephants are currently being defined by research in a number of zoos.

Taken together, it can be seen that there is biological uncertainty about the availability of viable cells, and that several complex techniques would have to be developed for cloning of mammoths to be successful. There is no guarantee that these techniques are even biologically possible. There may be unknown differences between species that would prevent the procedures that we developed in sheep being successful in mammoths.

Mammoth Stem Cells

An alternative ambition would be to try to use mammoth cells to produce stem cells. In several different species it is possible simply by the introduction of four selected proteins to give adult cells the characteristics of embryo stem cells. The four factors give embryo stem cells their unique characteristics and were found to be able to impose these characteristics on skin cells. This type of stem cell can be grown for very long periods in the laboratory while retaining the ability to form all of the tissues of the body.

They would provide extraordinary opportunities to compare mammoth cells with those of elephants. This knowledge would be of fundamental biological interest. It would enable us to begin to answer groundbreaking questions. What are the differences between the cells and tissues of these species? What are the similarities? The mammoth lived in a different climate, so was the metabolism of their cells different? Does this information cast any light on the cause of extinction of mammoths?

Stem cells of this type can also be induced to form gametes. If the cells were from a female, this might provide an alternative source of eggs for use in research, and perhaps in breeding, including the cloning of mammoths.

From a male, they would be sperm, and they might be able to fertilise eggs to produce a new mammoth embryo. It would be interesting to know if mammoth sperm could fertilise eggs of the elephant. If so, would the embryos develop to term to produce a hybrid animal?

Only a small proportion of mixed matings between species produces viable offspring, but the mule is one example and has been used by humans for centuries.

In all of these discussions it is necessary to consider the welfare of the animals. Mammoths lived in cold climates, whereas their current relatives including potential surrogate mothers live in warmer regions.

It would be essential to provide mother and clone with the appropriate environment of temperature, moisture and diet. It would almost certainly be necessary to keep the animals in captivity, so it would be essential to provide as interesting an environment as possible. Ideally this should include other elephants, mammoths or hybrids to provide social interaction for the animal.

So while unlikely at present, the development of some form of mammoth creature or hybrid might be possible in the longer term, the research of which could lead to major biological discoveries and advances.

This is another area of biology where studies of stem cells would be very rewarding. In stem cell research rather than cloning there would also be fewer concerns over animal welfare, or the effect of the animal on the environment. All in all, research to produce mammoth stem cells would be the appropriate choice, and extraordinarily scientifically rewarding, should it be possible to find viable mammoth cells.
http://www.realclearscience.com/arti...th_106615.html
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Old 03-04-2014, 11:06 AM   #1853
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Old 03-04-2014, 12:11 PM   #1854
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^ Pretty cool even though none are a PPM
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Old 03-04-2014, 12:38 PM   #1855
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How Realistic Is Cloning a Woolly Mammoth?


I could see doing this for endangered species and perhaps returning an extinct species to life, especially if we killed it off; like the Dodo bird or tasmanian devil.

But what would happen if someone cloned a T Rex or a Brontosaurus ?

Or what is someone wants to clone granddad or a lost child ?

Or Hitler, Genghis Khan or Stalin ?

But anyhow, it would be cool to visit an island that was populated with all the lost reptiles of the Jurassic period. As long as they stayed on the island and did not eat us.
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Old 03-04-2014, 12:47 PM   #1856
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^ Pretty cool even though none are a PPM
The comments on the youtube page make me want to swallow a cyanide pill.
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Old 03-04-2014, 12:47 PM   #1857
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But anyhow, it would be cool to visit an island that was populated with all the lost reptiles of the Jurassic period. As long as they stayed on the island and did not eat us.
Didn't they make a movie about this? I remember it not going all that well.
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Old 03-04-2014, 12:55 PM   #1858
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So, uh... what would happen if you placed a turbine generator in the flow of the falling water? Free electricity?

'Scuse me while I go rip off the electric company...
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Old 03-04-2014, 12:56 PM   #1859
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Didn't they make a movie about this? I remember it not going all that well.
Jurassic Park or King Kong ?
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Old 03-04-2014, 12:58 PM   #1860
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Didn't they make a movie about this? I remember it not going all that well.
Only my most favorite movie of all time.
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