The first step in forming a memory is called encoding, and encoding starts with perception. If you remember back to the first time you met your best friend, you encoded or perceived a lot of information about your friend.
Much like how people have different-colored hair, differences in DNA lead to slight differences in the way molecular machines work or in what they build.
It basically takes four things to make a waterfall: water, a land surface that’s made out of different rock types or sediment, a vertical drop, and gravity.
We could send humans to Mars whenever we want. We have the technology to do it today, but we would need to build new rockets that use that technology.
Generating a living creature requires not just the cells, but also the environment that allows full development to happen. It requires a womb.
Why can’t weather forecasters get it right every time, given this era of 24/7 weather data, dozens of satellite and sophisticated computer models? The answer lies in the quirks between the most popular forecasting models.
In principle, a wormhole-like scenario is possible, but a wormhole tends to close before objects or other matter could pass through it.
A California judge has ruled that sellers must post scary warnings about cancer risks on coffee. But how frightened should we be of a daily cup of joe? Not very, some scientists and available evidence seem to suggest.