901
Standing too close to the exhaust of an EA-6B Prowler on takeoff from the deck of the USS Kitty Hawk.
904
US Air Force's Aerospace Medical Laboratories testing cat reflexes during free fall in 1947.
905
Gallium is a metal with a very low melting point of 85.57°F (cooler than a warm drink).
906
The "glow stick" reaction of bis(2,4,6-trichlorophenyl)oxalate and hydrogen peroxide.
907
908
Gummy candy kit by the Japanese Kracie Popin' Cookin'.
909
How sprinkles are mixed to make rainbow sprinkles.
911
Persistence of Vision display by @Dseelab.
912
Deploying the evacuation slide raft on an Airbus A380.
913
This balancing cube is a Masters project at Chalmers University of Technology.
914
Never give up: a brief history of @SpaceX's attempts to land a rocket.
917
We're back from a break! An Emirates A380 pilot executes a "crab" landing technique in a crosswind at Düsseldorf airport.
918
The SpaceX Dragon capsule arriving at the International Space Station on April 4, 2018.
919
Transporting a Liebherr wheel loader to a Linth–Limmern power station in the Switzerland.
920
Transplanting seedlings with a Paperpot Transplanter.
921
A delightfully useless machine, via @swissmiss
922
A Boston Dynamics SpotMini with an arm opens a door for another SpotMini.
923
An oil slick at the 2017 French MotoGP caused a 13 bike crash. Amazingly no one was hurt.
924
JAC Motors transport truck releasing Racing Homer pigeons for a pigeon race.
925
Water in laminar flow (or streamline flow) has no cross-currents, eddies, or swirls.
Amazing feats of engineering. Tweeted by @kane and root.vc.