The 40th Anniversary Python Holy Grail Box Set Doubles As a Working Catapult

It’s hard to believe that the greatest achievement in comedic filmmaking is already 40 years old. And to help get another generation hooked on the antics of Monty Python, the 40th anniversary box set of Monty Python and the Holy Grail includes a tiny (but working) cow catapult. »9/08/15 12:00pm9/08/15 12:00pm

Making a katana the old traditional Japanese way is so impressive

I think this is the most impressive video that Man At Arms has ever done, and that’s saying a lot since they’ve recreated all the coolest weapons from TV shows and movies in real life. But there’s something ridiculous impressive about making a katana (stylized like the one from Kill Bill) the traditional old school… »7/14/15 2:38am7/14/15 2:38am

Which of Our Favorite Sci Fi Gadgets is the Most Powerful?

San Diego Comic-Con is in full swing, so naturally, we’re seeing a lot of iconic scifi gadgets this weekend. But as a faithful Giz reader, if you’re in the market for a fantastical new weapon to defeat your sworn enemies, you’re gonna want specs. How much energy can Thor’s hammer or a Jedi lightsaber actually produce? »7/11/15 12:24pm7/11/15 12:24pm

What It Feels Like to Shoot With the Military’s Experimental Smart Scope

You’ve probably never fired an M4 carbine. Until a couple weeks ago, I hadn’t either. But at a recent DARPA demo day, I loaded a magazine (also a first for me), snuggled up to the deadly assault rifle, and looked through one of the most technologically advanced smart scopes ever built. Then I pulled the trigger. »4/29/15 12:09pm4/29/15 12:09pm

Trying to Make Game of Thrones Valyrian Steel Sword With Real Materials 

Nothing reigns consistently in HBO’s Game of Thrones (and George R.R. Martin’s “Song of Ice and Fire” book series that inspired it) except Valyrian steel, a magical sword material. Valyrian steel is, of course, extremely not real. But materials scientist Ryan Consell took a look at its chemistry anyway. »4/07/15 12:07pm4/07/15 12:07pm

The Computer Simulation That Almost Started World War III

Remember the 1983 movie WarGames? The film is about a computer "game" with the potential to start thermonuclear war. But strangely this scenario is more truth than fiction. Because in 1979 programmers at NORAD almost started World War III when they accidentally ran a computer simulation of a Soviet attack. »2/17/15 12:18pm2/17/15 12:18pm