What color is the sky? Drawing, description

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What color is the sky? Children's Science Lab

Children's Science Lab

Directory / Children's Science Lab

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For experience you need:

glass cup;
water;
tea spoon;
flour;
white paper or cardboard;
flashlight.

What color is the sky?

1. Stir half a teaspoon of flour in a glass of water.

2. Put the glass on white paper and shine a flashlight on it from above. The water appears light blue or grey.

3. Now put the paper behind the glass and shine on it from the side. The water appears pale orange or yellowish.

The smallest particles in the air, like flour in water, change the color of light rays. When the light falls from the side (or when the sun is low on the horizon), the blue color is scattered, and the eyes see an excess of orange rays.

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Spatters to the rescue 22.04.2016

Bryzguny is a genus of ray-finned fish of the perch-like order, characterized by the ability to splash water in order to knock down insects that they feed on. Depending on its size, the archer can "shoot" up to two meters away. Thanks to this ability, archerfish in their English name - archerfish - became popular in the US Navy, and 2 submarines were named by this name, one of the Balao class during World War II, and the second of the Sturgeon class, which was in service from 1971 to 1998 G.

In 2003, the US Navy announced the start of a program called the "Air Mine Neutralization System", which involved the creation of a remotely controlled device to combat mines. The Archerfish project proposed by the British company BAE Systems was chosen as the basic concept, and its development began in 2007. And this year, the US Department of Defense signed a $ 22 million contract with BAE Systems for the industrial production of "Bryzgun".

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