What string works best for tin can phone?
What string works best for tin can phone?
You’ll also need string, and lots of it! The guys in the 2013 video used nylon twine, which is pretty stout. Of course they were also running their line over 650 feet. Cotton string, fishing line and ordinary twine also work.
How does can and string work?
How Do Tin Can Phones Work? Talking causes little vibrations in the air in front of your mouth, as you can tell by speaking into your hand. When you send those vibrations into the can, they cause the back end to vibrate. This vibration is passed along the string and into the other can.
How well did the string telephone work?
A string telephone works very much like a landline phone. When you talk into the cup your voice sends sound waves inside the cup, vibrating the bottom of the cup. The vibrations are transferred to the string, across the string and into the bottom of the other cup.
Can with a string?
A tin can telephone is a type of acoustic (non-electrical) speech-transmitting device made up of two tin cans, paper cups or similarly shaped items attached to either end of a taut string or wire.
What kind of string for CAN phones?
You will need 2 empty tin cans, a hammer, a nail or screw, masking or duct tape, and a long piece of cotton string or fishing line, about 10 to 30 feet in length.
Does two cans and a string really work?
The old “two cans and a string” technique (or better yet, “two paper cups and a string”) really does work. The key is to make sure that the string is tight between the two cups, and this normally means that the distance is limited and the two people have to be connected to each other by a straight line.
How far can a string phone work?
Their maximum range was very limited, but hundreds of technical innovations (resulting in about 300 patents) increased their range to approximately half a mile (800 m), or more under ideal conditions.
What is taut string?
– Taut means the string is firm and straight (like a rod) and has tension. – Slack means there is no tension in the string.
What does it mean when tension is 0?
It equals zero because the weight isn’t moving so the acceleration is zero. As you can see from the above equation, the tension transmits the force of gravity that acts on the weight, to a force acting on the hand. This is a general feature of massless strings, and is true even if there is acceleration.
Why is tension 0 when string is taut?
If the string isn’t moving fast enough to maintain circular motion at the top, and instead there is a brief period where the ball is falling, the tension would also be zero here and there would be extra curves in the string, and so you wouldn’t have to move the ball in order to move the string around, so in this case …
Is tension equal to weight?
Tension in the rope must equal the weight of the supported mass, as we can prove using Newton’s second law. If the 5.00-kg mass in the figure is stationary, then its acceleration is zero, and thus Fnet = 0. Thus, just as you would expect, the tension equals the weight of the supported mass: T = w = mg.
