Just think, the Andromeda Galaxy is several million light years away, but it's very bright, pumping out the light of hundreds of billions of suns. But in spite of the fact that it is diluted and sent out in all directions, enough of it is intercepted by a dark-adapted human pupil that it is plainly visible to the unaided eye on a dark night as a faint glowing fuzzy spot against the dark sky background. Even the smallest telescope can scoop up enough light that many more galaxies, thousands of them, much, much further away, can be seen.
And we live inside a galaxy comparable in size and brightness to Andromeda, and we see it as the Milky Way. Light, especially visible light, is only a tiny fraction of the electromagnetic spectrum. Everything else, from gamma rays to long wave radio bathes and penetrates our bodies every second, waiting only for us to invent a device that is able to detect it.
We are indeed connected to everything, everywhere and everywhen--providing the light has had enough time to reach us.
Space/Science » in reply to How much energy?
EM radiation can do that too.
The whole thread (23 posts)
- 100 years in the making