Why is the block and tackle called "block and tackle"?
Everyone has heard of a pulley system before. You have probably even operated one yourself. But often the question remains why this device is called that. The name is very funny, after all you automatically think of a bottle that might be pulled by a rope. The explanation is of course not that simple. If you want to know more, you can now find out more.
A pulley block is used in many different ways and is used in many places. From time to time, such a device can also be used in everyday life, for example when building a house, a garage or for other activities that require heavy lifting. Why this tool is so called is still a long way from being clear. The following article explains the term in more detail. But not only that - in retrospect you can read how you can build such a train yourself with simple means. You will see that the principle behind it is very simple.
Why is the device called that?
- It is important to know that the pulling device is used to move heavy loads. Leverage is used to lift weights that cannot be lifted with your bare hands.
- Contrary to all assumptions, no real bottles are used here. These are the roles used to set a load in motion. A string, rope or rope is pulled over these pulleys to make the work easier.
Make a pulley yourself
- At the beginning you attach a thick string to the roll (ie the "bottle"). You attach this cord to an elevation.
- Tie the object, for example a book or a pen, to the second string.
- Now place this rope over this roll. You now pull on the end where the load is not. You can see that the expected weight seems a little lighter. Thus the actual function comes back into force - the relief of the heaviness.
A pulley system is always good for astonishment. Seemingly immobile ...
You now know why the pulley is called that. Perhaps you can carry out the experiment described in school. That way, learning will be a little easier.