Dogs don't see color, rabbits see the world in shades, pigeons can see literally millions of different hues, snakes have vision pits that detect heat and “see” living creatures like an infrared detector. What the hell's going on here? Who has it right? What does this universe REALLY look like!? I feel like I'm going insane over this!
and according to einstein space is like a fabric.imagine a giant bed sheet made of the most elastic material in existence and then somenow imagine dropping the heaviest, densest object (and then some) in the middle of sheet. what a black hole is a warping of spacetime to where gravity is stretched into a pit in the same shape as the fabricjust that the black hole will go down so deep that it all seems to converge on one point where there is infinite density and gravity called the singularity- that is where modern science and physics, ends.
Im just copying and pasting this from one of my previous answer. hope it helps. Black holes by definition is an empty region in space with such gravitational pull that not even light can escape it. However, even though the name refers to it as a hole, its not really a hole. Its just a massive body that has tremendous gravitational pull. This black holes are formed from super massive stars, they run out of fuel and get to the limit of their chemical reaction.Turning en element into another element. When it runs out of Hydrogen and its core is made of mainly heavier elements, gravity becomes so strong that protons and Electron are fuse together to form neutrons, so by the end it forms a body formed of neutrons, which is called a neutron star. but then sometimes gravity wins over those neutrons and that's when a black hole its formed. So by that you should now know that is not really a hole since its coming from a neutron star. it does not sends you to another dimension or anything, they are just monster in space that swallow everything that gets close to its gravitational pull. and there is not way for us to know what happens happens there since we would be turn into 10000000 of pieces, or anything that gets close to it for that matter.
A black hole is very real but without a science background its difficult to truly understand. It's what happens when an extremely large star (many times larger than our sun and i mean mass wise) reaches the end of its life and then turns in to a neutron star then a black whole if its really really big. The actual black hole is smaller than anything you can imagine but they are black because the gravity exerted from them is strong enough to suck in even light hence the name. They look big but that's just the event horizon (distance from the actual black hole which light begins to be sucked in). If you want to know more your going to have to learn about Relativity and Astronomy.
A gas leak on its own will not set off a carbon monoxide alarm. There is no CO in mains gas so there is nothing to be detected. The only risk you have from a gas leak is an explosion. Also, you would smell a gas leak so if you can't smell the distinctive whiff of gas then your dog will be safe. It is possible that your detector was picking up residual CO from the car exhaust, 30 seconds is enough time to blow out quite a lot of the stuff, especially if your catalytic converter is not working efficiently. The carbon monoxide is a by-product of incomplete combustion of gas. This happens when one or more of your gas burners is not working properly, possibly due to dirt in the holes or inadequate oxygen supply. Therefore you must do the tests with the gas supply turned on and a burner running - preferably the one that was on when your first alarm sounded. But try them all anyway. When the alarm repeats you should be able to identify the faulty burner. If your experiments with the gas burners does not cause the alarm to sound then it was probably the car that did it.
