Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting

Light seconds, light years, light centuries: How to measure extreme distances – Yuan-Sen Ting

Light is the fastest thing we know. It’s so fast that we measure enormous distances by how long it takes for light to travel them. In one year, light travels...

History vs. Christopher Columbus - Alex Gendler

History vs. Christopher Columbus – Alex Gendler

Many people in the United States and Latin America have grown up celebrating the anniversary of Christopher Columbus’s voyage, but was he an intrepid explorer who brought two worlds together...

Schrödinger's cat: A thought experiment in quantum mechanics - Chad Orzel

Schrödinger’s cat: A thought experiment in quantum mechanics – Chad Orzel

Austrian physicist Erwin Schrödinger is one of the founders of quantum mechanics, but he’s most famous for something he never actually did: a thought experiment involving a cat. He imagined...

Einstein's brilliant mistake: Entangled states - Chad Orzel

Einstein’s brilliant mistake: Entangled states – Chad Orzel

Albert Einstein played a key role in launching quantum mechanics through his theory of the photoelectric effect but remained deeply bothered by its philosophical implications. And though most of us...

A different way to visualize rhythm - John Varney

A different way to visualize rhythm – John Varney

We usually think of rhythm as an element of music, but it’s actually found everywhere in the world around us, from the ocean tides to our own heartbeats, rhythm is...

How do germs spread (and why do they make us sick)? - Yannay Khaikin and Nicole Mideo

How do germs spread (and why do they make us sick)? – Yannay Khaikin and Nicole Mideo

The sun is shining. The birds are singing. It looks like the start of another lovely day. You’re walking happily in the park, when, “Ah-choo!” A passing stranger has expelled...

Is our climate headed for a mathematical tipping point? - Victor J. Donnay

Is our climate headed for a mathematical tipping point? – Victor J. Donnay

For most of us, two degrees Celsius is a tiny difference in temperature, not even enough to make you crack a window. But scientists have warned that as CO2 levels...

Is math discovered or invented? - Jeff Dekofsky

Is math discovered or invented? – Jeff Dekofsky

Would mathematics exist if people didn’t? Since ancient times, mankind has hotly debated whether mathematics was discovered or invented. Did we create mathematical concepts to help us understand the universe...

The unexpected math behind Van Gogh's "Starry Night" - Natalya St. Clair

The unexpected math behind Van Gogh’s “Starry Night” – Natalya St. Clair

One of the most remarkable aspects of the human brain is its ability to recognize patterns and describe them. Among the hardest patterns we’ve tried to understand is the concept...

The language of lying — Noah Zandan

The language of lying — Noah Zandan

“Sorry, my phone died.” “It’s nothing. I’m fine.” “These allegations are completely unfounded.” “The company was not aware of any wrongdoing.” “I love you.” We hear anywhere from 10 to...

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