Crank (mechanism) | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-10-02

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Crank_(mechanism)


00:01:01 1 Examples
00:01:13 1.1 Hand-powered cranks
00:01:43 1.2 Foot-powered cranks
00:01:59 1.3 Engines
00:02:21 2 History
00:02:29 2.1 Han China
00:04:08 2.2 Ancient Mediterranean
00:06:49 2.3 Medieval Near East
00:07:36 2.4 Medieval and Renaissance Europe
00:13:33 2.5 Modern Europe
00:16:11 3 Crank axle
00:16:30 4 See also



Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.9497291239890671
Voice name: en-US-Wavenet-E


"I cannot teach anybody anything, I can only make them think."
- Socrates


SUMMARY
=======
A crank is an arm attached at a right angle to a rotating shaft  by which reciprocating motion is imparted to or received from the shaft. It is used to convert circular motion into reciprocating motion, or vice versa. The arm may be a bent portion of the shaft, or a separate arm or disk attached to it.  Attached to the end of the crank by a pivot is a rod, usually called a connecting rod (conrod).  The end of the rod attached to the crank moves in a circular motion, while the other end is usually constrained to move in a linear sliding motion.
The term often refers to a human-powered crank which is used to manually turn an axle, as in a bicycle crankset or a brace and bit drill.  In this case a person's arm or leg serves as the connecting rod, applying reciprocating force to the crank. There is usually a bar perpendicular to the other end of the arm, often with a freely rotatable handle or pedal attached.