Hi, I'm very new to physics and I was just wondering if any of you might be able to awnser a question for me. Its probobly a question only someone who doesn't know pretty much any physics would ask, so if you all could humor me I would appreciate it :) Oh and sorry if I posted this in the wrong section. Ok here goes. I believe it was Einstein who said that gravity and accerleration are equal. Acceleration can not reach the speed of light (your mass would approach infinity?) so shouldn't it also be true that gravity can not reach the point where it's gravity (measured in acceleration) would equal the speed of light? And for light to be stopped or trapped by any kind of gravity, wouldn't the gravity have to be equal, in acceleration terms, to the speed of light? And yet isn't that exactly what a black hole does, or do black holes just affect light in a different way? Sorry if the above seems a bit disjointed, I'm having an attack of insomnia and lack of sleep tends to make me a little less coherent then normal. Anyway thanks for bearing with me.