77K views · 1.2K shares | First Lady Melania Trump: For the first time in history, the citizens of this country get to hear directly and instantly from their president every single day through social media | Team Trump | Facebook

Two 1952 EMC-Puch split single engined 125s (two cylinder split single two stroke engine). A split single engine means that two cylinders share a single combustion chamber. In internal combustion engines, a split-single design is a type of two-stroke where two cylinders share a single combustion chamber. Location is the Kempton Park Motorcycle Jumbles Thanks to Kempton Park Motorcycle Jumbles and Classic Bike Shows for having us along there on the day. Video by Alex Rollings. Instagram: @motofil

NΞURON generated a manufacturable rocket engine design using engineering constraints alone. The aerospike was 3D-printed as a single copper piece, cooled with liquid oxygen and kerosene, and successfully hot-fire tested. Developed by Leap71, this is a new way of building engines. Follow @spaceeves #RocketEngineering #Aerospace #SpaceTech #SpaceEves | SpaceEve