200 years
Anonymous
people have been using it forever
Get a life and do your homework little 2 year old that eats pie
Since about the late 1900 (circa 1950)
It was originally patented England-1845.
Nope. Nice try though. Folks have been trying to do this as long as there have been machines. Do a Google search for 'perpetual motion machine' and you'll see what I mean.
people have been using it forever
The screw is one of the so-called "simple machines" from which many more complex machines are derived. A screw is essentially a long inclinewrapped around a shaft, so its mechanical advantage can be approached in the same way as the incline.
Drums have been around probably since the time of early man. It is such a simple instrument. Another early human instrument is the bone-flute.
Gardening has been around since early man, when the neanderthals(and even earlier forms of man) grew simple crops to get by in their small villages.
Do you mean "Pokie Machine" (Australian/ New Zealand slang for slot machine)? If so, then they were invented 1887.
how long has deforestation been around
As long as guns have been around.
A stationary bike is one of the best and old ways to lose weight. This bike has been around for a long time and it has been the most effective out of any machines.
Domapine has been found in most animals that have been studied. It is a rather small and simple molecule and it has been around for a very long time. Even bacteria have it.
Get a life and do your homework little 2 year old that eats pie
how long has the london eye been around for
As long as So Random has been around.