John Loeffler

John Loeffler

Live Science Contributor

John is a Brooklyn-based journalist who was named a CES 2020 Media Trailblazer for his science and technology coverage. He holds a Masters Degree in Computer Science and has been a writer for most of his life. When he is not writing about science, he is the US Computing Editor for TechRadar.

Articles by: John Loeffler

Person standing in front of toilet, with one hand on their butt and the other holding a toilet paper roll.

Why is poop brown?

By John Loeffler published

Knowing why poop is brown, and what it means when it's not, is an important step in staying healthy.

Ocean waves.

Why can't we drink saltwater?

By John Loeffler last updated

More than 70% of our little blue planet is covered by water, but we can only drink a tiny fraction of it. Why can't we drink saltwater when it is all around us?