Waterfall tub. @Interesting_Engineering

@Interesting_Engineering

Rules for Teachers during 1915. @Interesting_Engineering

Lincoln's Killer Gun is Priceless, 6-inch derringer is in a display case at Ford's Theatre National Historic Site. @Interesting_Engineering

Did You Know?
If you are interested in scanning old family photos, scan negatives instead of the prints. This will give you the highest quality images.
@Interesting_Engineering

@Interesting_Engineering

Mpow 3-port Intelligent Car Charger @Interesting_Engineering

A generation of scientists at the Solvay Conference, 1927. @Interesting_Engineering

Steve Jobs

@Interesting_Engineering

What a grenade looks like from the inside. @Interesting_Engineering

The Old Cincinnati Library, Ohio. Built in 1874, and designed by James W. McLaughlin in 1868. @Interesting_Engineering

Royal Pair Chess City , Dubai .
[Concept]

Space Shuttle Columbia,2001. @Interesting_Engineering

Engineers !

@Interesting_Engineering

Interesting_Engineering

@Interesting_Engineering. ✈️

integral! @Interesting_Engineering