Simple Science - Digest Experiences # 38

We continue to publish on Geektime digests from "Simple Science". And today, apart from our videos, there will be another one from our viewer, who also shoots such videos.

In today's release:

• smoke in a glass;
• electrochromic film;
• wire with memory;
• video from the shooting of the program "Experiments" for the channel Science 2.0.

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Smoke in a glass

The experiment shows the result of a chemical reaction of a 25% percentage solution of ammonia and concentrated hydrochloric acid.
NH3 + HCl = NH4Cl

Electrochromic film

The electrochromic film consists of two layers of a film with an internal conductive layer and a liquid crystal base. In the off state, the crystals are arranged randomly, forming an opaque white and matte surface, scattering the transmitted light. When voltage is applied, the crystals instantly stabilize, the film becomes transparent and transmits light.

Technical characteristics of the film: power supply 90-110V, current 0.1A / m2, power - 7 W / m2, switching speed - less than 1 sec., Transparency 7-75%, switching resource more than 100 thousand times, operating temperature range from - 40 ° C to + 75 ° C.

Memory wire

This experience is from our viewer. Every next video he gets better and better, who are interested in recommending to subscribe.

Video from the shooting of the program "Experiments" for the channel Science 2.0

The program has not yet been aired on TV, these are working materials from filming. As for the sensations from inside the vacuum packaging, I can say that it is better to try once than to look a hundred times. When the package starts to squeeze you, in addition to complete immobilization, a sense of fear is added.

I remind you about our books .


By the New Year we have released a set with our books, sweets and packaging with a surprise. Details here .