Sweetie, if you mean expose your bare eyes under the sunlight, I think you’d better wear a pair of sunglasses. Sunglasses can block UV coating and protect our eyes. If you mean how to observe the sun, you can make a pin-hole lens. You just need to take two pieces of cardboard and one of them should be thin. And then make a small hole in the middle of the thin piece. The hole should be as round as possible. And then hold the piece of thin cardboard between the sun and the other piece. You can observe the sun now. And if you change the distance between the two pieces of cardboard, you will get different phenomenon..

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