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Entropy is present in all processes of life, from physics to chemistry, from architecture to biology.
As seasons change, we see different constellations in the night sky. The North Star is easy to identify in a picture taken with long exposure time, as it does not appear to move.
Have you ever heard about boomwhackers? Believe it or not, these are real musical instruments.
Much more food is produced on Earth than is required to feed the population. While most people in developed countries have access to enough food, people in many developing countries encounter food shortages.
Let’s make a pinwheel! It is a witty little toy if you give it a go in windy weather, too!
From a microscopic close-up you can inspect the movement of an amoeba with the use of its pseudopods.
Among the most significant research carried out in the early 20th century focused on the structure of the atom.
We can produce carbon dioxide gas using sodium hydrogen carbonate and acetic acid. The carbon dioxide puts out the flame.
When plates and membranes vibrate they deform spectacularly. These deformations, however, are hardly perceptible by the human eye, but are visible in slow-motion recordings.
The energy released by the burning walnut is used to heat water.
When the patellar tendon is lightly tapped, the extensor muscle stretches slightly.
In strong light the pupil contracts, while in low light it dilates.
A combination of fungal hyphae and algal cells viewed under a light microscope at a hundred times magnification.
A brightly coloured and extremely loud parrot whose screams can be as loud as 110 dB. In humans, long-term exposure to sounds of such intensity can cause hearing loss.