Tip: The best way to repel flies

Summer arrives, the sun is shining, the heat is steaming, and at the same time there are large numbers of flies, the most hated and harmful insects. Flies lay eggs in food, causing it to spoil and spread disease. Not to mention how annoying the flies are!

If you encounter flies at home or even while strolling, you should do the following:

1. You need to have: plastic bags, water, and a few coins (these are not to buy you a fly repellent, but to help you make one).

2. Fill the bag with water.

3. Put 4-6 coins in each bag.

4. Tie the bag and hang it in a place where flies often haunt.

Sounds like a trick? Well, there's actually a fascinating scientific explanation for this approach.

Millions of water molecules in water create a special prism effect, which means that so many water molecules refract light in a very special way. When you add coins, the cumulative effect of the refracted light also increases.

The way flies see things is very unique. Their eyes are made up of thousands of identical lenses, that is, they see thousands of reflections on the same image.

To flies, this simple water bag looks like a lot of disco balls that reflect light and motion, leaving them dizzy. In this case, they eventually become upset and feel vulnerable to predators.

Flies are food for many other animals, so flies feel vulnerable and don't wander around, they feel too dangerous.

This approach is not only effective, but also inexpensive, harmless to people, and not as contaminating our food, air, and water like chemicals. It's funny, sometimes the best solution is the easiest way to do it!