Black Holes Black Hole, a theoretical concept in the study of gravitation. The gravitational field of a black hole, which is an extremely dense body, is so strong that, if the body is large enough, nothing, including electromagnetic radiation, can escape from its vicinity. The body is surrounded by a spherical boundary, called a horizon, through which light can enter but not escape; it therefore appears totally black. Properties The black-hole concept was developed by the German astronomer Karl Schwarzschild in 1916 on the basis of Albert Einstein's theory of general relativity. The radius of the horizon of a Schwarzschild black hole depends only on the mass of the body, being 2. 95 km (1. 83 mi) times the mass of the body in solar units (the mass of the body divided by the mass of the sun). If....

Number Of Pages: 3

Number Of Words: 702

Got a term paper due soon and need some help quick? You have come to the right place. Essay Galaxy has over 50,000 essays, papers, and reports available for download right now! Get ideas from thousands students just like you to help make that essay perfect. Don't hesitate. Join today and get instant access to our enormous database.

Membership Options Price Savings   1 month subscription    $19.95 recurring * 3 months subscription    $39.95 recurring $19.90 6 months subscription    $69.95 non-recurring $49.75