Why are your hands always dirty after peeling oranges?

When you peel the skin, no matter how slow and careful you are, you may still get the orange juice. To understand why, researchers used high-speed cameras to photograph the slow motion of lemon, navel orange and Valencia orange when their shells were squeezed or bent.

Then, the researchers used engineering tools to measure the pressure of the oil-filled glands under the citrus skin. Glands vary in shape from spherical to approximately cylindrical. Scientists have found that they can spray water droplets at the speed of 10.5 meters per second, which is faster than the speed of insects flying or raindrops falling.

The team reported at the recent annual meeting of social comprehensive and comparative biology that these droplets can reach the maximum velocity from static state with a deformation of 1mm, and their acceleration is 1 1,000 times that experienced by astronauts flying into space. At present, the research team is trying to find out why this speed can be achieved so quickly and why oil can be turned into small water droplets so quickly. They say this information will help to design an explosive bag inhaler filled with drugs.

Oranges are common fruits in our life. Its benefits are obvious. Oranges are sweet and sour, rich in vitamin C, and one orange is equivalent to five medicines. Autumn and winter seasons are more reliable than eating nutrition! Although oranges are delicious, they always get a lot of juice after peeling. Their hands are sticky and dirty, and they taste bad. It's cold to wash your hands in winter. Today, Bian Xiao will teach you a trick. Peeling an orange takes only three steps. We are not afraid of dirty hands any more. Let's see.

Manufacturing technology: 1. First, cut off the top of the orange with a knife (just a little pulp is enough)

2。 Then pinch both ends with your hands and cut a circle from the middle to the pulp.

3。 Then open the orange peel on the back of the spoon and follow the same direction.

4。 Finally, just pull off the orange peel. There will be no juice spilled. It is very convenient to eat.