We’ve seen Schlieren photography in action before. Here’s another example from the Harvard Natural Sciences Lecture Demonstrations, which used a relatively simple setup to make air and other gases “visible.” 

We’ve featured plenty of videos showing how blacksmiths make swords, but this clip from Inspire to Make shows how to make a teensy weapon out of an ordinary nail. Using a smaller nail as the crossguard is especially clever.

LEGO would never in a billion years even think of releasing Citizen Brick’s new LEGO-compatible playset. The Citizen Brick Center for the Performing Arts is “a place where dreamers can dream, and dancers can dance.”

(NSFW: Language) Weedmaps TV’s new series Weed Snobs is about two pompous yuppies living in a world where the perceptions about marijuana and alcohol have been reversed.  “Extremely bomb sir, extremely bomb.” 

Batman goes to the Death Star to rescue Superman. But before he can do that he has to go through Darth Vader in this snazzy short from Super Power Beat Down. Why don’t the Sith just Force Choke their way through every battle?

We’ve teamed up with Grain Audio and Gear Diary to give away a pair of fantastic OEHP.01 headphones, worth $199. These walnut wood headphones offer the perfect balance between design, comfort and sound quality. (Ends 12/1/14)

Bell Helmets goes back to the future with this motorcycle helmet that draws inspiration from the original Bell Star, but made from today’s materials, offering up-to-date safety features, and full face protection.

Animator Nathaniel Akin’s lighthearted short film plays out entirely using old school typewritten ASCII art, and does a shockingly good job conveying its story and sense of humor despite its minimal characters.

(NSFW: Language) The guys parody the overused trope in which a madman hides in a hall of mirrors and attempts to evade a cop by hiding in the reflections. Perhaps it would be better if he hid the way the camera crew does in these scenes.

#Homescreen lets you share what’s on your phone. Post a screenshot of your homescreen and share it on the #Homescreen website. People can then hover over the screenshot and find out more about the apps you have.

In this skit from comedy show Le Dézapping du Before, a man goes on TV to talk about his high tech artificial arm. He starts to talk about its recording feature when he accidentally sets off the last motion he recorded. Skip to 2:15.

A minimalist smartwatch. Instead of an electronic display, Nevo has an analog watch face. It can track steps, distance, calories and swimming strokes, but displays the result through LEDs on the hour markers or on its mobile app.

It is believed that the Aztecs used death whistles at sacrificial rituals, to announce deaths or to scare enemies. You can buy or make your own death whistle. Just know that it sounds exactly like the shriek of a tortured soul. Holy crap.

As its name implies, Space Engine is not a game. It’s simulation software for Windows that lets you explore our universe. The known parts are replicated based on astronomical data; the rest are randomly generated.

Even if you’re Usain Bolt, there’s no way you can run faster than a grizzly. In this clip a passenger driving through Wyoming’s Grand Teton National Park captured a bear running as fast as their car. If you should encounter one, try these pointers.

Transforming a tune from a major key to a minor key can really make it dark. This is particularly evident in Chase Holfelder’s sinister rendition of The Police classic Every Breath You Take, making it even more stalkerish that it was already.

Luggage packed with modern conveniences. Instead of zippers, Trunkster has a rolltop door for easy access. It also has a digital scale, a 15,000mAh battery and a 3A USB port for charging and optional location tracking.

Honk is a US roadside assistance app for iOS and Android. Use it to connect to nearby tow trucks and other vehicle services, specify your problem and get a quote. If you agree on the price (minimum $49) you’ll get help in 15-30min.

Tim Gonzales made a 21st century trailer for the 1984 classic The Last Starfighter. It works partly because of the high definition footage, but it’s undeniably Zack Hemsey’s background track This is Our Legacy that seals the deal.

The latest trailer for Batman: Arkham Knight is a gameplay montage that sees Bats infiltrate a chemical factory guarded by the titular antagonist. The Arkham Knight may have an army, but the Dark Knight has the Batmobile.

We now know that Chris Pratt stars in the new Jurassic World movie. So it’s amusing that in this four year old Parks and Rec behind-the-scenes clip, Chris was sassing Spielberg about the opportunity to star in Jurassic Park 4.

Unlike previously unveiled Gran Turismo 6 concept cars, the Chevrolet Chaparral 2X VGT is as fictional as it gets. It’s powered by a non-existent laser-based engine and is worn like a wingsuit, with the driver lying on his belly.

Diehard duffers: hit the dome this winter with Mizuno’s MP-T5 wedges. A rough clubface gives the crisp sticks maxed out high-spin capability and spin control, and 25 different loft and bounce combos will please the pickiest players.