An illustration of the famous duel between Alexander Hamilton and Aaron Burr on July 11, 1804. They both fired and Burr's shot fatally wounded Hamilton.

Burr-Hamilton Duel

An illustration of the famous duel between Alexander Hamilton and Aaron Burr on July 11, 1804. They…

An illustration of the death of King Phillip at the hands of another Native American.

Death of King Phillip

An illustration of the death of King Phillip at the hands of another Native American.

Lincoln's death, after being shot by John Wilkes Booth.

The Death-Bed of President Lincoln

Lincoln's death, after being shot by John Wilkes Booth.

A syringe is a simple piston pump consisting of a plunger that fits tightly in a tube. The plunger can be pulled and pushed along inside a cylindrical tube (the barrel), allowing the syringe to take in and expel a liquid or gas through an orifice at the open end of the tube.

Syringe

A syringe is a simple piston pump consisting of a plunger that fits tightly in a tube. The plunger can…

"A wheel driven by water shot over the top. The buckets of the wheel receive the water as nearly as possible at the top, and retain it until they approach the lowest point of the decent. The water acts principally by its gravity, though some effect is of course due to the velocity with which it arrives." — Winston's Encyclopedia, 1919

Water-wheel

"A wheel driven by water shot over the top. The buckets of the wheel receive the water as nearly as…