Big bangTheBig Bang is the expansion of the Universe from an extremely hot and dense state that started about 13.7 billion ago.
Gas is one of the four basic states of matter. A pure gas consists of individual molecules(like helium, xenon, neon, etc), diatomic molecules (like oxygen, sulphur, hydrogen, etc) or a compound molecule made of different atoms(as in CO2). A mixture of gases contains variety of gaseous molecules like that of air. Read More>>
Gravitational Force is an attraction between two bodies by the virtue of their mass. The force of attraction between two point masses is , where m1 and m2 are the masses of the particles and r is the distance between them. G is a universal constant having the value 6.67 × 10-11 Nm2kg-2. Read More>>
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Dianna Cowern is the creator of Physics Girl. Driving tractors on a farm in Hawaii where she grew up somehow led to science and engineering pursuits. Nicknamed “happy pants” in college, Dianna researched dark matter with Prof. Jocelyn Monroe as an undergraduate at MIT, and low-metallicity stars with Prof. Anna Frebel as a post-baccalaureate research fellow at the Harvard-Smithsonian Center for Astrophysics, before bringing her happy intern pants to GE where she worked as a Software Engineer designing mobile apps. Eventually, she started exercising the nerdy side of her brain on YouTube as Physics Girl before (and while) heading over to UCSD as a science outreach coordinator. She loves to surf, SCUBA dive and play the ukulele.
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