The Science of Hypnosis [Video]

You might think that hypnosis is just a fun gimmick for stage shows and plot twists, but it turns out, there’s a lot more to it than just that.

Hypnosis is a state of human consciousness involving focused attention and reduced peripheral awareness and an enhanced capacity for response to suggestion. The term may also refer to an art, skill, or act of inducing hypnosis. [Source]

[Source: Scishow on Youtube]

Starting a Fire With a Water-Filled Sandwich Bag [Video]

The intensity of sunlight on Earth is about 1300 Watts per square meter. When you focus the sun’s rays using a magnifying glass (or in this case sphere of water) you can increase the intensity roughly ten thousand fold. This increases the temperature of wood to its autoignition point starting the reaction with oxygen in the atmosphere. By protecting the hot embers and adding more energy and fuel, you can get these hot coals to start a roaring fire.

[Veritasium]