With this # 33 digest of experiences we open our summer season.
In today's release:
sublimation of iodine, or sublimation;
“Blood and living water” is a chemical focus;
fountain of beads;
fiery music.
Sublimation of iodine or sublimation
Sublimation (or sublimation) is the transition of a substance from a solid to a gaseous state, bypassing the liquid phase. Iodine cannot be in a liquid state at normal atmospheric pressure. That is why when heated it turns from solid peas into gas. But after again settles on the cold flask as a solid. The reverse process is called desublimation. ')
Chemical focus "Blood and living water"
Similarly, charlatans do "operations without a scalpel." This requires: ammonium rodanide, ferric chloride, sodium fluoride.
Fountain of beads
I admit, this experience turned out to be not very impressive. Much more efficient to use a chain of metal balls. Here is a great example .
Fire music
Working on Rubens Pipe, we tried to make a rectangular version and we didn’t go further than what you saw. And recently, I stumble on the Internet on the excellent implementation of a rectangular version. I recommend everyone to look at it .
Book Three "Simple Science" in Chinese
We were approached here with a funny offer: to sell a book in China. The idea at first glance seems complete absurdity, but what the hell is not joking :)
That even translated one of the turns:
Books "Simple Science" in Russian are available in our online store .