World of Engineering

Citric acid isn’t made from citrus at all, it’s fermented from sugar using mold.

In 2025, solar electricity generation overtook wind globally for the first time.

SNOLAB in Sudbury, Canada sits 2,092 metres underground in an active nickel mine, the deepest clean room laboratory in the world. At that depth, the 2 km of rock above blocks cosmic rays that would otherwise overwhelm the detectors used to search for dark matter and study neutrinos.

⛽️ "Premium" 91 (95 in EU rating) octane gasoline in the US is considered a regular in Europe, that's why cars like Mercedes or BMW have "premium unleaded only" on the filler door, because the regular US would be too low for the engine.

"A rocket will never be able to leave Earth's atmosphere." -New York Times, 1936

Putting premium gasoline in a car which only requires regular is a waste of money and does nothing. Follow me for more financial advice

Rubber well nut

Earth’s Moon is by far the largest and most massive satellite relative to its parent planet in our solar system.

One day on Venus lasts 5,832 hours. The same as one Monday on Earth :)

The moon has moonquakes.

The only scientific paper ever published by Bill Gates was a possible solution to a mathematical problem about pancake flipping.

Even if a Nuclear Winter occurred, it would be followed by a Nuclear Summer

The Eiffel Tower is 700 tons heavier today than when it was built, purely because of 130 years of layered paint.

Earth receives enough sunlight every day to meet all of humanity's energy needs 10,000 times over

For decades, Skewes’ Number was the largest number ever used in a serious math proof. It’s roughly 10^10^10^34 – a number so large it exceeds the total number of atoms in the observable universe, several times over.

Petrol in North America has a lower octane rating than the rest of the world because the US and Canada have a stricter way of measuring it. "Regular" gasoline sold in the US as 87 octane would actually be considered 92 in the rest of the world and "midgrade" fuel sold as 89 octane would be 95.

Zero is just a portal between positive and negative numbers.

Life tip: If you can’t figure out how something goes back in it’s box, look and see if there’s a YouTube unboxing video.

Assembling electronics in a factory (Hungary, 1966)

The sentence "the quick brown fox jumps over the lazy dog" uses every letter in the English alphabet.

What happens in your head when you add 37+48?

1 gram of activated charcoal has a surface area of over 3,000 m²

What car has most comfortable front seats?

There is a rare type of very hard wood called ‘Lignum Vitae’. It’s so hard that it was used to make propeller shaft bearings for nuclear submarines.

On Feb 25, 1896, Nikola Tesla patented Alternating Motor.

The Clearest Image of Venus's Surface, By a Lander that Melted After 2 Hours. On March 1, 1982, the Soviet spacecraft Venera 13 landed on the fiery surface of Venus and sent back the clearest images we’ve ever received from that hellish world.

Life tip: Need to divide something fairly between 2 kids? Let one kid make the split and let the other kid choose the partition.

If engineers are wrong, things explode. That’s why we double-check.

Space fact: If you were driving at 75 miles per hour (121 kmh), it would take 258 days to drive around one of Saturn’s rings.

Life tip: Buy yourself a fire extinguisher. It's better to have something you don't need than to need something you don't have.

Imagine using AI supercomputers to understand what dogs and cats are saying — instead of putting everyone in a bikini.

A negative thinker has many problems to one solution. A positive thinker has many solutions to one problem.

NASA's Voyager 1 space probe was launched 16 days after its twin, Voyager 2.

Scientists renamed 27 human genes in 2020 because Microsoft Excel kept auto-converting their names into dates, causing widespread errors in published genetic research.

Adapter for threaded rivets

When you look at the sun, you see how it appeared 8.5 minutes ago.

Marriage logic map

Life tip: Remove the batteries from electronics, toys, etc. before storing them away. The batteries may corrode the terminals rendering the item useless in the future.

When jumpstarting a car, you should connect the negative clamp to an unpainted part of the engine block rather than the negative battery post on the dead car. Otherwise if a spark occured it could ignite the hydrogen gas emitted by the lead acid battery.

Thread rivet nut

Supercooled water 🧊

How old were you when you found out that nuclear reactors are just fancy steam engines?

i don't need it but i want it

Button cell battery names are actually codes include the chemistry, shape, diameter and thickness. CR2032 is C lithium, R round, 20mm diamter, 3.2mm thick

40 years before Google Maps, you called people who looked at maps

👏🏻

Nut zipper drill attachment