Travel by bubble might seem more appropriate for witches in Oz, but two physicists suggest that a future spaceship could fold a space-time bubble around itself to travel faster than the speed of light.
We're talking about the very distant future, of course.
The idea involves manipulating dark energy — the mysterious force behind the universe's ongoing expansion — to propel a spaceship forward without breaking the laws of physics.er:
Answer:
(a) 2
Explanation:
Two points will define a ray. One of them is the end point. The other defines the direction of the ray.
__
Any line segment, ray, or line will consist of an infinite number of points. In each of these cases, 2 points is sufficient to define it.
Answer:
- Learning about, using, and understanding these pyramids is an ... sides, age on the y-axis, and the percentage of population on the x-axis. ... Rather, it displays percentages and shows what portion of people fall ... The more a graph looks like a pyramid, the faster that population is growing; old generations ...
Explanation:
Example: Cuagas, and Puerto Rico. Vous pouvez visited W I k I p e d I a pour plus information.
Answer: The process of reducing or removing minerals from water is called desalination.
Explanation:
The most commonly involved in this process is seawater, which by its nature contains large amounts of salt. This process makes it possible to remove salt from the water and obtain drinking water. The coastal and island regions often have great difficulty in supplying drinking and process water. As a result, permanent or occasional shortages of water and all the resulting consequences are becoming increasingly frequent.
Furthermore, in the future, due to a possible lack of water, this process could be crucial in supplying humanity with drinking water. Today, some countries (such as Saudi Arabia) that have a water scarcity problem are actively using this technique to supplement the required quantities of water.
