Hello. I want to present to your attention a device called an electroscope that is not tricky and interesting from the point of view of physics. Those who did not miss physics lessons can skip the description of the principle of the device and go directly to the description of the manufacture (but I think who visits the site, could not miss this very interesting subject).
This device helps detect electric charges.
It consists of a metal rod, with suspended strips of foil or paper.
At first I collected it from a half liter jar, but with the words, I would have to make another three liter: wink:, I decided to collect it from a small bottle for medicines. The advantage of the bottle, it is more transparent thinner lighter does not take up much space, etc.
Do not throw out such bottles because they have the opportunity to make a lot of interesting and useful homemade products.
From the tools I needed:
Pliers (where without them, and always shabby). : winked:
Scissors (may not have special signs).
Toothed clamp (because it is): wink:.
And with a dental spatula (without it at all): wink: well, to be honest, make more or less even rings.
From materials:
Foil (its extraction is usually accompanied by the merciless eating of chocolate wrapped in it).
A copper wire, in my case with a cross section of 2.5 square millimeters.
And actually the bottle itself.
Let's get started.
The whole preparation of the bottle is to remove the aluminum cap (or whatever).
Next, I pulled the copper wire out of the sheath.
Clamped a hook from a wire.
Cut the foil.
He pierced the rubber stopper of the bottle.
On lowered foil on prepared copper wire.
I stuck a wire with foil petals in a cork and made another ring.
He closed the cork and done.
If anyone wants to reassemble the electroscope, then do not forget about safety measures (for example, when you bite off the wires of an existing outlet).
By slightly modifying the device, you can get a small Leyden jar.
Leiden Bank is the first electric capacitor invented by the Dutch scientist Peter Van Mushenbrook and his student Küneus in 1745 in Leiden. In parallel and independently, a similar apparatus called (medical jar) was invented by the German scientist Ewald Jürgen von Kleist.
An electroscope was going for his son, he was pleased as an elephant. (Naturally, I played enough first). Having played enough, our electroscope was safely hung on a nail.
The device was assembled quickly, without an infusion of funds, is easy to repeat, and fulfills its functions one hundred percent. I am sure your children will like it (if any), and will give you the opportunity to distract them (albeit not for long).