Planes
Trains
Automobiles
100

In the Air Force, it's the person who flies planes to try them out

Test pilot

100

Usually the last car on a train, it serves as an office for the conductor

Caboose

100

A 1991 act of Congress mandated the installation of both driver & passenger side these in passenger cars & light trucks

Airbags

200

She had completed some 22,000 miles of a 29,000-mile flight around the world when she disappeared in 1937

Amelia Earhart

200

A true story of how a train got stuck in snow for days inspired Agatha Christie to write this mystery

Murder on the Orient Express

200

In the 21st century this equine term is still a common unit for cars

Horsepower

300

Though often used to mean the front of a terminal where planes remain in a delay, it's actually a paving material

Tarmac

300

Maglev is short for this technology in which wheelless trains glide over their tracks

Magnetic levitation

300

This groundbreaking alphabetic creation from Henry Ford debuted in 1908

Model T

400

It's said that more than 50 ships & 20 planes have disappeared in this eerie region of the North Atlantic

The Bermuda Triangle 

400

In 1978 Via Rail took over running the trains of this "tower"ing company founded 60 years earlier

CN

400

With a Latin name meaning "I roll", this Swedish automaker began rolling out its cars in 1927

Volvo

500

Small planes have 2- or 3-bladed these, but others have some with 8 blades

Propellers

500

Reaching speeds of up to 200 miles per hour, Japan's shinkansen are better known by this name

Bullet trains

500

These are mandatory in newer cars, but you can install an aftermarket one like the Auto-Vox Cs-2 in your 1994 Chevy Corsica

Reverse/back-up camera