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

Life tip: if you’re trying to focus on studying listen to videogame music. It’s designed to be background noise while you focus your attention on other tasks.

And what is your superpower? 😃

Useful tip

🤯

That finish is unreal

Daniel Fahrenheit (who invented the mercury thermometer) set 0°F to the coldest stable temperature he could maintain in his lab by dissolving salt in water.

∞ - ∞ = 0 Well yes, but actually no

Life tip: It's time to turn off your ceiling fans, clean the blades, and reverse the switch.

How it works

Albert Einstein and Marie Sktodowska Curie reminiscing by a lake in 1929

How to install concealed hinges

Life tip: If a spray bottle doesn't work and still has liquid in it, stick your finger over the nozzle and pump it a few times and it'll create a vacuum and start working again.

World of Engineering Quiz: Which of these trucks are driving?

Why is this so satisfying to watch?

Life tip: The tires should be inflated to the value shown on the sticker on one of the doors or even on the fuel cap, the value written on the wheels is the maximum value, not the recommended value.

Drops on penny experiment: water vs alcohol. The water molecules have much more cohesion than alcohol molecules, because they grab onto one another through hydrogen bonds.

Cordless wall chaser

If the sun vanishes, we won’t know it for 8 minutes.

Life tip: When you find an article about a scientific finding, look for the link to the actual study and just read that.

Useful tip

Read this vernier caliper.

Please explain

Lifting anchor

Faking the moon landing in 1969 would have been harder than actually going to the moon. It would also take the efforts of more than 400,000 conspirators to keep it a secret.

Life tip: When asked for your expected salary in an interview never give a number instead give a range.

Life tip: Type "-ai" (minus AI) at the end of your Google search to disable the AI summary.

Everything is a hammer unless it's a screwdriver, then it's chisel.

5 megabytes of storage in 1956:

Nutcracker

Right angle attachment

Electrical discharge machining (EDM) is a non-traditional form of precision machining that uses thermal energy instead of mechanical force to remove material from a workpiece.

It didn’t get any cooler than this in the 1960’s SR 71 Blackbird - it still looks futuristic today, sixty years after it came out.

The American Gyro AG-4 Crusader, 1935. Number built: 1.