How do you think Calder's background as an inventor, engineer, and more help him with creating his art works?

Ineed some on finding music. i have a nephew who is into rap, but when i find a rap song, it seems to either be too old for his taste or to him it isn't good enough. can someone suggest some good music for me to see if he likes it or not?

Drag the tiles to the correct boxes to complete the pairs match the meal to its primary sensory characteristic

What benefits are there to using an online filter app?