Just like how you communicate or talk with someone, the cells in your body use a simple yet sophisticated form of communication, which is vital to keep it healthy and functioning properly. This communication process is called cell signaling. We can break down this cycle into three stages: message reception, transduction, and response. Continue reading “The Three Stages of Cell Signaling”
This man is Galileo Galilei and he was a 17th Century Italian scientist who studied mathematics and physics. But, he is probably best known for his discoveries in astronomy. Did you know that he discovered the rings around the planet Saturn, and four of the dozens of satellites ( word for: smaller planet or object that revolves around a larger planet) that orbit around Jupiter? He also created his very own telescope!
Did you know that about 1800 years ago (200 AD) that an astronomer and astrologist named Ptolemy made a theory about how the Earth was the center of our solar system? And people believed him, for 1200 years?! Crazy right?