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Set Theory: Types of Sets, Unions and Intersections
We've already learned a little bit about set theory when we first started using interval notation. Let's expand on this a little bit to include sets …
13 hours ago
Calculating Percent Error
Sometimes we take measurements, and sometimes we're off by a little bit. How far off? Does it make sense to just use a number? Shouldn't we use somet…
13 hours ago
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…
14 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…
14 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…
15 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…
15 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…
16 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 …
16 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…
17 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…
17 hours ago