r/ScienceNcoolThings Sep 15 '21

Simple Science & Interesting Things: Knowledge For All

1.0k Upvotes

r/ScienceNcoolThings May 22 '24

A Counting Chat, for those of us who just want to Count Together 🍻

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11 Upvotes

r/ScienceNcoolThings 8h ago

Why lightning happens

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4.6k Upvotes

Lightning forms when air currents cause water and ice particles in storm clouds to collide, creating a positive charge at the cloud's top and a negative charge at its base.

When this electric field grows strong enough to break down the air's insulation, a negative "stepped leader" descends toward the ground while positive charges rise from tall objects to meet it.

Upon connection, a powerful return stroke surges upward, producing the visible flash. This rapid discharge violently heats the surrounding air, generating a shockwave heard as thunder.


r/ScienceNcoolThings 5h ago

The invisible force made visible

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42 Upvotes

r/ScienceNcoolThings 18h ago

Engineering of the wheels on this Martian Rover.

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355 Upvotes

r/ScienceNcoolThings 1d ago

The invisible force made visible

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2.9k Upvotes

r/ScienceNcoolThings 1d ago

Just a cool physics experiment..

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188 Upvotes

r/ScienceNcoolThings 1d ago

This is how rocket engines are tested

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792 Upvotes

Rocket engine testing verifies performance, safety, and reliability before flight by firing engines on specialized stands equipped for extreme heat and pressure. Using advanced sensors, engineers measure key variables including thrust, fuel consumption, combustion stability, and thermal protection to identify potential flaws across liquid, solid, and hybrid systems. These tests also validate essential subsystems, such as thrust vector control for steering and custom nozzle designs optimized for atmospheric or vacuum conditions.


r/ScienceNcoolThings 8h ago

The Toad That Destroyed Ecosystems

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7 Upvotes

Did you know this toad secretes poison to protect itself? 🐸

Meet Oak, our Cane Toad whose shoulder lumps, called parotoid glands, ooze a milky toxin strong enough to stop predators and even kill smaller ones. Cane toads are an invasive species. They were once only found in Central and South America but have been brought to places like Australia, Florida, and the Caribbean to control crop pests. This ended up not being a success and is a good reminder to leave native species where they are.


r/ScienceNcoolThings 22h ago

creative optical illusions with single light sources

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51 Upvotes

r/ScienceNcoolThings 1d ago

The Ocean Just Broke a Heat Record

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117 Upvotes

Scientists just recorded the highest sea surface temperature ever. 🌊🌡️

Copernicus Climate Change Service clocked a global average of 21.1°C (70°F), beating the previous single-day record of 21.09°C set in 2024. It's especially alarming because sea surface temps usually peak in March and April, not August. Warmer oceans absorb less CO2, which can fuel more extreme weather, and scientists suspect a developing super El Niño may be part of what's driving it. 


r/ScienceNcoolThings 1d ago

Dolly and her Parents

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191 Upvotes

r/ScienceNcoolThings 10h ago

A new way to derisk investing in innovation

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0 Upvotes

r/ScienceNcoolThings 23h ago

Does each deep sea creature have its own acoustic fingerprint?

8 Upvotes

r/ScienceNcoolThings 14h ago

What are those?

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0 Upvotes

r/ScienceNcoolThings 1d ago

See a butterfly Under a microscope..

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199 Upvotes

r/ScienceNcoolThings 23h ago

Casio FX-9750 data logging, remote control, and more -$10 upgrade

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1 Upvotes

r/ScienceNcoolThings 2d ago

NASA Launched Its Next Mega-Telescope!

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502 Upvotes

NASA’s next great space observatory has officially launched! 🛰️🚀

The Nancy Grace Roman Telescope is now on its trip to go a million miles away from Earth, where it will reside and send images of space back to us. In the month it will take to get there, the observatory will undergo a 90-day commissioning period to get set up. Considering it launched eight months ahead of schedule, don’t be surprised if we get some pictures early!


r/ScienceNcoolThings 2d ago

Robot taunting opponent

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653 Upvotes

r/ScienceNcoolThings 2d ago

The Rotation of the Planets in Our Solar System Is Far More Fascinating Than I Ever Expected

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222 Upvotes

r/ScienceNcoolThings 3d ago

Your eyes will swear they're moving

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447 Upvotes

r/ScienceNcoolThings 3d ago

sound waves playing back from a homemade paper cup recording

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6.2k Upvotes

r/ScienceNcoolThings 1d ago

Wall-e (A very good movie...)

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0 Upvotes

r/ScienceNcoolThings 2d ago

What are these white things on this tree branch?

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2 Upvotes

r/ScienceNcoolThings 3d ago

NASA's Roman Space Telescope Explained

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215 Upvotes

The Roman Space Telescope is launching ahead of schedule. 🛰️

Its origin story is wild: NASA couldn't afford a Hubble successor until the National Reconnaissance Office handed over two spare telescope mirrors it no longer needed. That surplus gift reignited political and scientific support, opening the door to full funding for what's now called the Nancy Grace Roman Telescope. As theoretical cosmologist Paul Sutter explains, this survey instrument will map galaxies and hunt exoplanets, expected to discover around a million of them, delivering a generation's worth of valuable information about the universe!