SEISMOGRAPH

I build that seismograph for a school project. It consist in a pipe with different holes, from 1 (the smallest) to 10 (the biggest) with a marble ball in each one. Each time you move the base of the seismograph, simulating a seism, some of the balls fall down, showing you the grade of the seism. 

A grade 3 seism

Do you like it? Please, comment below!  ^-^

Did you konw?

Did you know that there's enough DNA in an average person's body to strench from the sun to Pluto and back 17 times?



Just said that beacuse sometimes we don't realise how amazing human body is.