The science in Ark


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Book: Ark
Author: Stephen Baxter
Publisher: Gollancz
Date: 20 August 2009
´╗┐The science in this book is mainly about a warp drive that can make a spacetime bubble that can travel faster than the speed of light. it often talks about the person who came up with this idea who's name is Miguel Alcubierre and so it is known as the Alcubierre drive.


The Alcubierre drive
In 1994, the Mexican physicist Miguel Alcubierre proposed a method of stretching space in a wave which would in theory cause the fabric of space ahead of a spacecraft to contract and the space behind it to expand. The ship would ride this wave inside a region known as a warp bubble of flat space. Since the ship is not moving within this bubble, but carried along as the region itself moves, conventional relativistic effects such as time dilation do not apply in the way they would in the case of a ship moving at high velocity through flat spacetime relative to other objects. Also, this method of travel does not actually involve moving faster than light in a local sense, since a light beam within the bubble would still always move faster than the ship; it is only "faster than light" in the sense that, thanks to the contraction of the space in front of it, the ship could reach its destination faster than a light beam restricted to travelling outside the warp bubble. Thus, the Alcubierre drive does not contradict the conventional claim that relativity forbids a slower-than-light object to accelerate to faster-than-light speeds. However, there are no known methods to create such a warp bubble in a region that does not already contain one, or to leave the bubble once inside it, so the Alcubierre drive remains a hypothetical concept at this time.


In the book this science is used for the ship they use to travel to another planet to live.

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This video is about two people, Michio Kaku and Miguel Alcubierre, kaku being some scientist who knows a lot about space, astrophysics and other stuff like that, and Alcubierre who is also a scientist who theorised or came up with the Alcubierre drive.
So the video is about Kaku and Alcubierre talking about how the alcubierre drive spacetime bubble works and what it does.



Spacetime



This video is about how the fabric of spacetime works and what happens to spacetime when things are removed or added.




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In physics, spacetime is any mathematical model that combines space and time into a single continuum. Spacetime is usually interpreted with space as being three-dimensional and time playing the role of a fourth dimension that is of a different sort from the spatial dimensions.
So basically spacetime is the 3 dimensions of space and the 1 dimension of time together so it makes 4d and throughout the book they use spacetime for the creation of the starship which will carry them to their new home.
For more info on this go here:
http://www.britannica.com/EBchecked/topic/557482/space-time

http://www.youtube.com/
http://lifeboat.com/ex/bios.miguel.alcubierre
http://www.andersoninstitute.com/alcubierre-warp-drive.html
http://www.universetoday.com/77005/astronomy-without-a-telescope-warp-drive-on-paper/
http://www.ws5.com/spacetime/