Tad Dalton of Orange Park, Florida brought velcro shoes back into style, slingshotting the trend into 21st century pop culture.

For the most part no. All the energy in a orbiting satellite's speed originates from the rocket that put it there. The electrical energy their electronics consume usually come from solar cells; although there have been a handful of nuclear powered satellites. Satellites that travel to other planets in the solar system and beyond do gain some of their velocity from slingshotting around massive objects, such as other planets of the sun. This gravity-assist is a way to get free energy for traveling craft.

Good question. Imagine a spacecraft is approaching a planet. The planet is moving around the sun. The spacecraft path is adjusted to approach the trailing limb of the planet -- the rear edge of the planet when you look at its orbit around the sun, not its dark side. The planet pulls on the spacecraft as it goes by (and actually the spacecraft pulls on the planet, too). If the spacecraft were close enough to the planet, and traveling slowly enough, it would be captured by the planet. But it is possible to put the space craft in a path so that will not be captured--it can be pulled by the planet so that the spacecraft gains velocity. The planet loses velocity, but since planets are huge and spacecraft small, the planet's velocity is barely affected. It is hard to visualize this, but imagine a ping pong ball being struck by a soccerball in mid-air (this would make a good science class demonstration)--the ping pong ball will pick up tremendous speed by being struck by a heavier ball. The heavy ball will hardly notice it. You can do this by dropping the soccer ball with the ping pong ball on top of it. Slingshotting a spacecraft (also called gravity assist) works in a similar way except the spacecraft would be pulled by the planet's gravity instead of being pushed (as with the two-ball demonstration).

Parabolic orbits in space exploration are characterized by their shape, which is like a stretched-out "U." These orbits are used for missions that require a spacecraft to travel quickly past a celestial body, such as a planet or moon, without entering into orbit around it. Parabolic orbits are often used for flyby missions, where the spacecraft gathers data and images as it passes by the target. This type of orbit allows for efficient use of fuel and can provide valuable information about the target body.

The earth's magnetic field is key for stopping dangerous things called cosmic rays. It deflects most of them and keeps them from reaching the earth. Cosmic rays are mostly protons, with a few electrons and a bit of gamma radiation thrown in. And the first two are charged particles, which will be deflected when moving through a magnetic field. The can (and does) actually funnel the charged particles toward the magnetic poles, and these charges can "slip down" along the earth's magnetic field lines and interact with the upper atmosphere. This is the mechanism behind the aurora.

Another effect of the loss of the field would be that a magnetic compass would no longer help us navigate. (the iron core of the earth is responsible for the existence of he magnetic fields)

The results of the matches of WWE Elimination Chamber 2012 are:

a. WWE Title Match - CM Punk

b. World Heavyweight Title Match - Daniel Bryan

c. John Cena Def. Kane

d. Jack Swagger def. Justin Gabriel

e. Beth Phoanix def. Tamina Snuka