When astronomers looked at this new ALMA image, it reminded them of a pretzel – a pastry shaped like a knot. But there are no
You probably know how to make soap bubbles. First, you put a ring of plastic or metal into a soap bath, and gently pull it
Do you like watching the clouds? It’s a pleasing pastime. If you have enough imagination, the clouds above your head sometimes resemble faces or animals.
Your eyes are connected to your brain through thick bundles of nerve cells. These optic nerves transfer the signals from your two retinas to your
If your ears are good, you can hear very high tones. Children’s ears are usually better than the ears of grown-ups. So you might be
If you hold your breath for too long, you will die. Your body needs the oxygen in the air. Without getting enough oxygen, you can’t