Another experience with a ladle. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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Another experience with a ladle. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

A knife is heavier than a pencil. A ladle is heavier than a knife. What would be harder to pick up a ladle? a plate? Good!

Look at the balance record set by a ladle connected to its girlfriend - a slotted spoon!

Another experience with a ladle

The inverted plate rests with its edge on the neck of the bottle in a firm, stable position.

Author: Galpershtein L.Ya.

We recommend interesting experiments in physics:

▪ Cylindrical lens

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Random news from the Archive

solar wall 29.08.2011

From small solar panels you can assemble a "green" wall. The idea that a solar panel is a massive panel mounted on a roof is outdated.

A New York-based company called "Sustainably Minded Interactive Technology" (which means "Sustainability-oriented Interactive Technology") came up with a design in the form of sheets comparable in size to a grape leaf. You can use them in the same way as vertical gardening: fix a metal mesh on the wall and attach leaves to it.

The sun's rays will generate electricity, which will run along the grid, and at the same time such leaves will protect from heat. Leaves can be painted in all sorts of colors and attach different batteries to them. So, a sheet equipped with a polymer battery will cost $ 20, and will give energy no more than 0,5 watts, but there will be little toxic waste during its production.

Solar cells based on silicon monocrystals will cost $ 18, they will give 4 watts, but there will be more dirt. Actually, this price seems strange. After all, fans of polymer batteries all the time prove that they can be printed on a printer, which is why the price is much less than that of silicon ones.

Be that as it may, it is easy to calculate that in order to obtain a power of 10 kW (namely, this is how much they are now emitting during the construction of cottages in the suburbs), a solar wall will cost at best 45 thousand dollars, or two to three times more expensive than connecting to the network electric company.

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