The Physics of the Doppler Effect, Represented as Tiny Balls

The Physics of the Doppler Effect, Represented as Tiny Balls

Notice how the balls look "bunched up" on the left side of the sound source but spread out on the right side? Here is a plot of the apparent ball frequency for a source moving at 4 m/s with the ball sound speed of 10 m/s.

Inside the Creation of Zero's All-New Electric Motorcycle

Inside the Creation of Zero's All-New Electric Motorcycle

“This [new] generation allows us to create a gap again.” Rather than trying to disguise the SR/F as a conventional motorcycle, Zero's design team left the 14.4-kWh battery exposed, emphasizing the bike's electric nature.

Harley-Davidson's Electric LiveWire Motorcycle Debuts at CES

Harley-Davidson's Electric LiveWire Motorcycle Debuts at CES

Today at CES in Las Vegas, Harley-Davidson announced it has started taking pre-orders for the LiveWire, the all-electric motorcycle it first showed off in 2014.

Cake's Electric Motorcycle Makes Dirt Biking a Silent Joy

Cake's Electric Motorcycle Makes Dirt Biking a Silent Joy

Cake's Electric Motorcycle Makes Dirt Biking a Silent JoyIn one day on the Kalk, I went from whiskey throttling noob to trail-shredding semi-noobEric AdamsI’d ridden the motorcycle part of the way up a small dirt hill, and was trying to simply reverse my way back down when I fell off the machine.

Luxuriate in This Mechanic's Teardown of a 1974 Harley Davidson

Luxuriate in This Mechanic's Teardown of a 1974 Harley Davidson

Luxuriate in This Mechanic's Teardown of a 1974 Harley DavidsonIf you want to get to know something, tear it down.