How do magnets affect things at a distance? How does the Sun heat our planet from 93 million miles away? How can we send messages across the world with our cell phones? We take these seemingly simple things for granted, but in fact there was a time not too long ago when the processes behind them were poorly understood, if at all… and, to the uninformed, there could seem to be a certain sense of “magic” about them.
This video from MinutePhysics, featuring director of the Perimeter Institute for Theoretical Physics Neil Turok, illustrates how our understanding of electromagnetic fields was developed and why there’s nothing magic about it… except, perhaps, how they pack all that excellent info into 5 minutes. Enjoy!
Video: MinutePhysics (Created by Henry Reich.) In conjunction with The CBC Massey Lectures.
Astronomers have only been aware of fast radio bursts for about two decades. These are…
How do you weigh one of the largest objects in the entire universe? Very carefully,…
Exploring the Moon poses significant risks, with its extreme environment and hazardous terrain presenting numerous…
Volcanoes are not restricted to the land, there are many undersea versions. One such undersea…
Some binary stars are unusual. They contain a main sequence star like our Sun, while…
11 million years ago, Mars was a frigid, dry, dead world, just like it is…