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Particle Physicist Daniel Whiteson (Get to Know a Scientist!)
Daniel Whiteson is a particle physicist at UC Irvine. So what do particle physicists do? Experiments with particles? Yes they do! But that may not lo…
1 day, 7 hours ago
Ancient Rome Part 2: The Roman Empire (50 BCE – 250 CE)
In the late first century BCE, the Roman Republic became the Roman Empire. What does this mean? What were the changes that occurred socially and poli…
1 day, 8 hours ago
Ancient India Part 4: The Gupta Empire (300 – 500 CE)
After the Mauryan empire, the other state that came to dominate almost all of the Indian subcontinent was the Gupta empire of the 3rd through 6th cen…
1 day, 8 hours ago
Converting Between Temperature Scales (Celsius, Fahrenheit, and Kelvin)
If you're American, you're familiar with the Fahrenheit scale, so 30 degrees is cold and 100 degrees is hot. But in the rest of the world, nobody use…
1 day, 9 hours ago
Special Relativity Part 3: Length Contraction
Time dilation was pretty weird, huh? Well we aren't done yet! Time is relative, and so is space! Different observers measure different lengths for ob…
1 day, 9 hours ago
Discussion With Colette Delawalla (Stand Up For Science and Impeach RFK!)
Dave has a discussion with Colette Delawalla, executive director of Stand up for Science, on the science denial of the Trump administration and what …
1 day, 10 hours ago
Ask Professor Dave #1: What's My Ethnicity?
Alright guys, you've been asking a lot of questions by email and in the comments section, and not all of them are about science. So I decided to star…
1 day, 10 hours ago
Types of Fingerprint Patterns
We just learned how fingerprint patterns form, so now let's learn how to categorize them. There are three main types of fingerprint patterns, those b…
1 day, 11 hours ago
Types of Triangles in Euclidean Geometry
If a shape is made of straight line segments, the minimum number of sides it can have is three. And three sides make a triangle! I'm sure you knew th…
1 day, 11 hours ago
Special Relativity Part 2: Time Dilation and the Twin Paradox
We got our feet wet with special relativity, so now let's head to the deep end! Remember in Interstellar when what's his face went down to that one p…
1 day, 12 hours ago