Category : Education : Society & Culture & Entertainment

Ripple Tank Experiments

Education
A ripple tank is a shallow tank of water that can be used to demonstrate the properties of waves. An oscillating paddle is lowered into the water and connected to a power supple, producing vibrations and generating waves that travel outward. Light usually illuminates the ripple tank so the waves can

Short Essays

Education
Is Human Nature Good or Evil? There is no objective criterion to distinguish between good and evil. The objective criterion in judging human behavior should be €Selfishness€ and €Altruism€. Was the behavior of the Japanese ...

What Is a Cartouche?

Education
A cartouche is an oval emblem created in the likeness of a magical braided rope that encircles the name of an Egyptian king spelled out in hieroglyphs. The rope was believed to protect the king and to honor his name not only in life, but in death. Displayed on tombs and monuments, cartouches symboli