Everyday Physics & Science Demos Videos Hacker News Recommends

lecture#8

AT&T Archives: Similiarities of Wave Behavior (Bonus Edition)

AT&T Tech Channel

“By far the best introduction to the subject of waves of any sort.”

12 HN recommenders · 2014–2026

explainer#25

Heat Pumps: the Future of Home Heating

Technology Connections

“Start here for a good introduction to heat pumps and how they are so efficient”

17 HN recommenders · 2021–2026

interview#215

Richard Feynman Fire

nebulajr

“it's impossible to stay in any kind of negative mood if you watch Feynman”

8 HN recommenders · 2010–2023

demo#241

Building a realistic artificial sun (for dark winter days)

DIY Perks

“The result is quite stunning. I've never seen anything like it.”

9 HN recommenders · 2020–2025

explainer#301

Brown; color is weird

Technology Connections

“made me watch a 20 minutes videos on the color brown and makes it feel like magic”

8 HN recommenders · 2020–2026

explainer#484

The Biggest Misconception About Electricity

Veritasium

“It’s an eye opening alternative explanation”

7 HN recommenders · 2021–2026

explainer#523

Watch electricity hit a fork in the road at half a billion frames per second

AlphaPhoenix

“by far the best explanations of electricity that I've encountered in any format”

5 HN recommenders · 2024–2026

explainer#569

Old-fashioned rice cookers are extremely clever

Technology Connections

“I had no idea they were so clever, combining thermodynamics and the physics of magnetism.”

6 HN recommenders · 2020–2025

explainer#577

Fourier Optics used for Optical Pattern Recognition

Huygens Optics

“The video happens to have one of the best explanations of Fourier transforms I've yet encountered.”

5 HN recommenders · 2021–2025

explainer#736

How Trees Bend the Laws of Physics

Veritasium

“I recommend watching, I think it's one of the best veritasium Dereck has ever produced.”

4 HN recommenders · 2013–2026

explainer#755

But why would light "slow down"? | Visualizing Feynman's lecture on the refractive index

3Blue1Brown

“probably the clearest reasonably accessible explanation of this topic anywhere to date”

5 HN recommenders · 2023–2026

explainer#803

Traffic Waves

wbeaty

“One of my favorite videos of all time on this topic: Traffic Waves”

5 HN recommenders · 2013–2022

demo#809

Why You Should Put YOUR MASK On First (My Brain Without Oxygen) - Smarter Every Day 157

SmarterEveryDay

“has a wonderful video demonstrating this effect [0]. I’d recommend watching the whole thing”

5 HN recommenders · 2016–2025

explainer#880

Richard Feynman talks about light

sdfhsfh

“I highly recommend you watch this video of Feynman explaining light”

4 HN recommenders · 2018–2025

lecture#912

Introduction: The Chemical History of a Candle by Michael Faraday (1/6)

engineerguy

“is a masterpiece in science education.”

4 HN recommenders · 2018–2022

explainer#942

How an Atomic Clock Really Works: Inside the HP 5061A Cesium Clock

CuriousMarc

“I've yet to see a description better than in CuriousMarc's HP 5061A series”

4 HN recommenders · 2020–2026

explainer#946

How Do Nuclear Submarines Make Oxygen?- Smarter Every Day 251

SmarterEveryDay

“Smarter Every Day did an interesting series of videos about nuclear submarines.”

5 HN recommenders · 2021–2026

demo#995

Best fan placement to move air through the house

Matthias random stuff

“Matthias Wandel made a great video showing how it's better to place the fan a meter or two away from the window to get more air flow”

4 HN recommenders · 2021–2025

explainer#1021

Most People Don't Know How Bikes Work

Veritasium

“It shows what happens if you prevent the rider from performing the countersteer before leaning into a turn [1].”

7 HN recommenders · 2021–2025

explainer#1043

Mars Helicopter (before it went to Mars)

Veritasium

“a really excellent video that answers all your questions”

10 HN recommenders · 2020–2021

demo#1174

Mystery of Prince Rupert's Drop at 130,000 fps - Smarter Every Day 86

SmarterEveryDay

“High speed video of one of these things exploding. Kinda blew my mind.”

4 HN recommenders · 2013–2024

explainer#1268

The Moon's Orbit is WEIRD

minutephysics

“I can't explain better than minute physics, highly recommend”

4 HN recommenders · 2024–2026

music#1275

OK Go - Upside Down & Inside Out

OKGoVEVO

“One of my preferred video clip ever was filmed entirely during a parabolic flight”

3 HN recommenders · 2018–2026

demo#1277

The Backwards Brain Bicycle - Smarter Every Day 133

SmarterEveryDay

“There is an absolutely fascinating video about plasticity of learning between adults and children that I'd highly recommend watching [1].”

4 HN recommenders · 2015–2025

explainer#1323

Is This What Quantum Mechanics Looks Like?

Veritasium

“an excellent pilot wave (de Broglie-Bohm) theory video by Veritasium[1]”

4 HN recommenders · 2016–2025

demo#1408

Single particle creates interference after double slit - Wave particle duality at the workshop

heligone

“If you want to develop intuition, look at this video”

3 HN recommenders · 2015–2021

interview#1415

The Future of War, and How It Affects YOU (Multi-Domain Operations) - Smarter Every Day 211

SmarterEveryDay

“It's an insightful how-and-why explanation for those wondering why there aren't more conscientious objectors”

4 HN recommenders · 2019–2022

explainer#1478

Where Do Trees Get Their Mass?

Veritasium

“Veritasium has a fun video demonstrating how unintuitive this is”

3 HN recommenders · 2015–2021

explainer#1535

Why Machines That Bend Are Better

Veritasium

“Veritasium videos are pretty darn high quality.”

3 HN recommenders · 2019–2021

explainer#1598

The Incredible Sounds of the Falcon Heavy Launch (BINAURAL AUDIO IMMERSION) - Smarter Every Day 189

SmarterEveryDay

“the sonic booms of the boosters coming into land are amazing, listen with headphones!”

5 HN recommenders · 2018–2022

talk#1641

Doug McLean | Common Misconceptions in Aerodynamics

Michigan Engineering

“You might get something out of this 2013 talk by former Boeing engineer Doug McLean on misconceptions about lift.”

4 HN recommenders · 2019–2021

demo#1673

Neutron movie of coffee making

Anders Kaestner

“There's also a fantastic Youtube video in a neutron beam facility of a Moka pot”

3 HN recommenders · 2021–2024

explainer#1741

Why Do Reversing Trucks Not Beep Any More?

Tom Scott

“Tom Scott has a fascinating video that describes how this is changing”

3 HN recommenders · 2016–2026

explainer#1787

Feynman: Mirrors FUN TO IMAGINE 6

Christopher Sykes

“Feynman has a good explanation for that”

3 HN recommenders · 2012–2024

explainer#1896

Why It's Impossible to Tune a Piano

minutephysics

“minutephysics had a nice video about the mathematics that go behind piano tuning too.”

2 HN recommenders · 2015–2026

explainer#1904

Bed Bugs- What You've Been Told is Totally False

Mark Rober

“mark rober did a good entertaining video on this”

3 HN recommenders · 2023–2025

demo#1905

Backspin Basketball Flies Off Dam

Veritasium

“There's a great Veritasium video explaining the Magnus effect and the Flettner rotor here”

3 HN recommenders · 2015–2021

explainer#1958

How does a whip break the sound barrier? (Slow Motion Shockwave formation) - Smarter Every Day 207

SmarterEveryDay

“I highly recommend it.”

2 HN recommenders · 2019–2023

explainer#1977

Why does light slow down in water?

Fermilab

“See this video for an explanation of why light travels slower through a medium with an index of refraction greater than one.”

3 HN recommenders · 2020–2023

explainer#2001

You've (Likely) Been Playing The Game Of Life Wrong

Veritasium

“Before I watched this I would default to thinking about most distributions as normal.”

4 HN recommenders · 2025–2026

explainer#2083

Slow Motion Flipping Cat Physics | Smarter Every Day 58

SmarterEveryDay

“This video has a good explanation of the process”

3 HN recommenders · 2012–2023

explainer#2089

How big is a visible photon?

Huygens Optics

“I like this one for the approachable and intuitive explanation”

3 HN recommenders · 2021–2025

explainer#2103

Light Waves Visualized using Photon Sieves.

Huygens Optics

“It shows how the interference patterns actually look.”

3 HN recommenders · 2020–2022

explainer#2219

Risking My Life To Settle A Physics Debate

Veritasium

“The visual that made it click for me was at 18:54 in the original video”

5 HN recommenders · 2021–2023

demo#2243

DIY mass spectrometer measures potassium in dietary salt substitute

Applied Science

“he tries to explain why it's built the way it is and give you a good basis of the theory of operation.”

3 HN recommenders · 2020–2023

explainer#2293

Turning Waves Into Particles

Huygens Optics

“the explanation is beautiful in its simplicity”

2 HN recommenders · 2025

explainer#2322

Reynolds Number - Numberphile

Numberphile

“I think this is a good lay-person's introduction to basis of Kolmogorov's length scale, specifically the Reynold's number”

3 HN recommenders · 2019–2021

explainer#2335

A Physics Professor Bet Me $10,000 I'm Wrong

Veritasium

“The small demonstration that made it click for me is from that video”

3 HN recommenders · 2021–2023