Explain why the meniscus of water is curved downward whilst that of mercury is curved upwards

I just learned something new, and I am 82 years old

I googled "meniscus of water" and I came up with this:

www.jiskha.com/questions/1894540/explain-why-the-meniscus-of-water-is-curved-downward-whilst-that-of-mercury-is-curved

My question is, why couldn't you do that ??