It’s Official: NASA’s Peer-Reviewed EM Drive Paper Has Finally Been Published

Science Alert has published these interesting news: It’s Official: NASA’s Peer-Reviewed EM Drive Paper Has Finally Been Published.

In case you’ve missed the hype, the EM Drive, or Electromagnetic Drive, is a propulsion system first proposed by British inventor Roger Shawyer back in 1999.

Instead of using heavy, inefficient rocket fuel, it bounces microwaves back and forth inside a cone-shaped metal cavity to generate thrust.

According to Shawyer’s calculations, the EM Drive could be so efficient that it could power us to Mars in just 70 days.

But, there’s a not-small problem with the system. It defies Newton’s third law, which states that everything must have an equal and opposite reaction.

According to the law, for a system to produce thrust, it has to push something out the other way. The EM Drive doesn’t do this.

This is a good reminder that we are far from knowing everything and there are inventions to be made, laws of nature discovered, and knowledge acquired.  Exciting!

Space technologies on Earth

A few days ago I had one of those drunk conversations on the importance of space exploration.  A chunk of it was spent on trying to remember and figure out which technologies do we enjoy now that were initially develop for or during space missions.  Today, on this slow Saturday afternoon, I remembered the conversation and had a brief look around.  There are plenty of websites that show the top 10 or just a random collection of technologies that improved live on Earth, after being used in space.  But I think the better, all around, one is the Wikipedia page on NASA spin-off technologies.

There are quite a few things listed there, grouped and categorized under health and medicine, transportation, public safety, consumer, home, and recreation, environment and agriculture, computer technology, and industrial productivity.