Simple Science - digest experiments # 34

pyrophoric iron h4> < br />
Pyrophoric - is the ability of the solid material in the finely divided state to self-ignition in the air without heating.

Ammonia Fountain h4> < br />
Previous ammonia based on the ability to dissolve in water. The flask was vacuum arises and the external air pressure rolls with great force the water from the beaker into the flask. The red color of the indicator in the flask indicating the presence of an alkaline medium there.

Frozen Bubble h4>

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How to put an egg on end h4>

The egg has an oval shape with two sharpened tips. At rotation appears the centrifugal force that is able to set the egg on one of these peaks. This will only happen with a boiled egg, because it is completely solid. But to unleash the raw egg will not work, because it has a hard shell and liquid inside. When tightening raw egg liquid inside rotation slows and stops the egg quickly.

During the experiment, conducted a lot of trial, but we have not been able to answer the question "why is the egg stands on top of one, then the other».

News Project h4> After the publication of three books and release of the first set, we started thinking about the future monetization of our project. And with a leading Science 2.0 channel Anton Voitsekhovskii create an interactive show for children. And now we want to offer this show is still in the form of a franchise. I would be happy with any opinions about this venture.



Source: habrahabr.ru/company/gtv/blog/228867/