Physics

Space

Are Scientists Actually Building an Elevator to Space?

Explore the physics behind space elevators, which would theoretically use a cable anchored to Earth and extending into space. Sending rockets into space requires sacrificing expensive equipment, burning massive amounts of fuel, and risking potential catastrophe. So in the space race of the 21st century, some engineers are abandoning rockets for something more exciting: elevators. […]

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Science

The Big Misconception About Electricity

Here’s a fascinating riddle of science: do electrons carry energy around a complete conducting loop, transferring their energy to the load or is something else at play?

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Mathematics

How Imaginary Numbers Were Invented

Imaginary numbers come up in the most unlikely places. Quite impressive given that they are “impossible.” But how did math go from reflecting and describing reality to the abstract field we tend to think of it today. Veritasium explains.

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AI

Brian Greene on Quantum Gravity, The Big Bang, Aliens, Death, and Meaning

Brian Greene is a theoretical physicist who also educates the public via his books and documentaries appears on Lex Fridman’s podcast. Time stamps: 0:00 – Introduction 0:27 – Entropy 8:35 – Consciousness 24:54 – Quantum gravity 28:14 – String theory 41:41 – Time 54:13 – Free will 58:36 – Emergence and complexity 1:05:48 – The […]

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Science

Will Constructor Theory Rewrite Physics?

With my interesting in quantum computing, I have spent a lot more time than usual looking at videos like this. The people behind the greatest leaps in physics – Einstein, Newton, Heisenberg, all had the uncanny ability to see the fundamentals – see the deepest, underlying facts about the world, and from simple statements about […]

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Space

Terraforming Mars in 3 Just Simple Steps

In this not-quite-serious video Sabine Hossenfelder explains what it would take to terraform Mars and make it habitable for humans. Time stamps: 0:00 Intro 0:58 Conditions on Mars 2:02 Step 1: Creating a Magnetic Field 4:50 Step 2: Creating an Atmosphere 6:06 Step 3: Converting CO2 to O2 8:46 Sponsor Message

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Robotics

This Robot Walks, Flies, Skateboards, and Slacklines

This is a robot that walks, flies, skateboards, slacklines, and might do much more one day.

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