476
A Congreve clock or oscillating path rolling ball clock uses a rolling ball instead of a pendulum to regulate time.
478
Assault Amphibious Vehicles (AAV-P7/A1) entering the water.
479
The silica glass fiber tiles on the Space Shuttle are such effective thermal insulators that they can be picked up straight out of a furnace. youtube.com/watch?v=Pp9Yax…
481
An active pinball bumper, also called a "pop bumper", "thumper bumper", "jet bumper", or "turbo bumper".
482
Anti-snail barrier on a tomato planter by @DIYPerks.
484
JAC Motors transport truck releasing Racing Homer pigeons for a pigeon race.
487
A timelapse of the SpaceX SAOCOM 1A launch leaving Earth's shadow.
488
MBZ160 Steamed Stuffed Bun Machine by Shandong Meiying Food Machinery Co.
489
Snake robot by the Matsuno Lab at Kyoto University.
490
Making a sheath with a horn gear braiding machine.
491
Testing the animatronic head built for the movie "The World's End".
492
A Whooshh Innovations fish passage transporting fish around the Roza Diversion Dam.
497
Abrasive flow machining the inside of a '93 Mustang Cobra intake manifold, by @ExtrudeHone.
498
The Modular Prosthetic Limb by @JHUAPL allows amputees to control prosthetics with their mind.
499
The 5 Waves prototype by @Surf_Lakes generates waves for surfing in controlled environments.
500
A hackle is a bed of pins used in the manufacturing of hair extensions to comb and blend the extensions.
Amazing feats of engineering. Tweeted by @kane and root.vc.