Please answer thisWe can easily move our hand in air but to do the same through a solid block of wood we need a karate expert?

Please answer thisWe can easily move our hand in air but to do the sam

1.	Please answer thisWe can easily move our hand in air but to do the same through a solid block of wood we need a karate expert?
Answer» It is hard or ELEMENTS are closely PACKED TOGETHER or too dense than AIR