During the solar eclips, explain why we should observe this event on the water surface in a basin of water

you should observe this event on the water surface in a basin of water to not get blind

Effective use of sun visors or similar blocking devices is best. Many believe that viewing the sun's reflection off a body of water or piece of dark glass or metal automobile hood is safe; it is not, for the sun's reflected light can also cause eye damage.

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