326
How an oscillating sprinkler works, via @trufelman pic.twitter.com/UAJoRMV7zX
327
The "glow stick" reaction of bis(2,4,6-trichlorophenyl)oxalate and hydrogen peroxide.
328
MAGIC (Major Atmospheric Gamma Imaging Cherenkov Telescopes). When it’s foggy it’s focusing lasers are visible. twitter.com/archillect/sta…
329
The Mercedes “eccentric clean sweep” system used a single windshield wiper to provide full windshield coverage.
330
French wingsuit BASE-jumper Vince Reffet intercepts and boards a Pilatus Porter aircraft mid-air.
331
A Transall C160 spinning its turboprops on a desert airstrip.
332
Flexagons are unique geometries which can be infinitely folded or "flexed" in certain ways.
333
Cubli, a self-balancing cube by the Institute for Dynamic Systems and Control at @ETH.
334
Footage from @AstroKomrade's GoPro as he engages in an EVA aka spacewalk to refurbish the Canadarm2 robotic arm and the Dextre robotic arm extension on the ISS in October 2017.
335
Removing unripe tomatoes with an optical sorter.
336
Coca Cola Japan's special edition bottle for Christmas 2016.
337
A trichroic beam splitter separates white light into red, green, and blue light.
338
An oil slick at the 2017 French MotoGP caused a 13 bike crash. Amazingly no one was hurt.
339
"La Mécanique du l’Histoire", a performance art piece at Panthéon of Paris by Yoann Bourgeois.
340
Back from vacation!
A dog experiences zero-G in a diving airplane.
342
French tattoo artist JC Sheitan Tenet has a specialized prosthetic arm tattoo gun.
343
Polyethylene oxide is self-pouring due to its long polymers.
345
The IBM Selectric typewriter had a rotating and pivoting typing element that could be swapped for different fonts.
346
Automatic coat hanger machine by Rudolf Grauer AG.
347
The importance of airbag timing demonstrated by a Honda video.
348
Turning the Place Over, by sculptor Richard Wilson.
349
Loading raw cotton with advanced technique.
350
Happy Friday. This knife-wielding robot tentacle by @manspaceouta is difficult to turn off.
Amazing feats of engineering. Tweeted by @kane and root.vc.