Rolling Shutter Effect

(YouTube link)

Have you ever seen an airplane propeller that looked like this? It’s called the rolling shutter effect {wiki}. A cell phone camera records what it sees by scanning from one side of the frame to the other (or top to bottom), and strange things happen when the scene you are shooting moves faster than the image scanner. Another video illustrates how the slow scanning process of a cell phone camera creates this effect. -Via: reddit, Via: Neatorama

PROPELLER CLOCK

Time flies on a propeller clock. LINK, Via: UniqueDaily

The Propeller Clock

The prototype of the propeller clock made of the rotating 33 LEDs line and the HDD motor. LINK: Youtube

Arbyn and I have 2 hand held personal fans that have the led where you can set up what you want it to read, We used them for one of his photos when he did his 11:11 a day blog.

Propeller Powered Skateboard

He took the propeller powered skateboard out for a spin and somehow avoided death. The skateboard worked amazingly well and was great fun to ride! The engine was an OS 1.60, more details here: crazybuilders.com/item.php?id=000014&type=project_section / LINK: Vimeo

Cars With Propellers

Why would you attach a propeller to a perfectly normal car? Because you can! Because you can rid the car of transmission, clutch and brakes. Because you can utilize air power and powerful aircraft engines, gain lots of traction and never have to worry about wheelspins or getting stuck in snow or mud.

Some of these propelled cars are even today seen running at the shows. Most models feature sluggish low-speed acceleration, great maximum speed, bad fuel economy and a ridiculous noise from propellers. LINK