yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

This Is A Light-Nanosecond!


less than 1m read
·Nov 10, 2024

I trimmed my beard yesterday, so I'm feeling a bit like a baby today. But look at the trimmings! Specifically this one that is 2.4 fortnits worth of beard growth. How do I know? Well, because of this tool I made. This about 5 years ago to free people from the tyranny of standard units. It measures in weird units like beard fortnits, the typical length of beard grows every 2 weeks.

It's also got light pico seconds, how far light travels in a trillionth of a second. If you didn't get one 5 years ago but you're subscribed much later this year, three boxes from now you'll get one in a special Legacy box we're making. The entire ruler is exactly one light nond long. This is how far light travels in a vacuum in 1 nond.

Everything I see from this distance, I'm seeing as it was a billionth of a second ago. It's a reminder that you live in the past because light has a finite speed. You do not see things as they are; you see the universe only as it was. Also, you're going nowhere if you fall asleep tonight in the same bed you woke up in this morning. Your average velocity for the day will be zero.

More Articles

View All
LC natural response derivation 2
In the last video, we set up this differential equation that described an LC circuit, and now we’re going to go about solving this second-order circuit. The technique that works here is the same that worked with first-order ordinary differential equations…
Worked example: Finding the formula of an ionic compound | AP Chemistry | Khan Academy
Let’s now see if we could come up with the chemical formula for the ionic compound calcium bromide. And like always, if you are inspired, pause the video and see if you could come up with it on your own. All right, so the convention is that we write the …
Flora, Fauna, Funga | Documentary | National Geographic Society
(Tranquil music) (Birds chirping) - [Giuliana] Without fungi, no plant could live outside of water. Without fungi, nothing would decompose. (Tranquil music continues) (Birds chirping) Most of the fluxes of nutrients on our planet would not exist. Basicall…
Gupta Dynasty | World History | Khan Academy
In previous videos, we talked about the emergence of the Morya Empire around 322 BCE, shortly after the invasion of Alexander the Great, as the first truly great Indian empire that unifies most of the Indian subcontinent. Now, that empire eventually falls…
Best Crypto To Buy Right Now | Kitco NEWS
[Music] So in this environment, Roy, give me your top DeFi or crypto investment. Is there an altcoin that you think has room to rally? Give me, in two sentences, your top investment in the space right now. “I’m going to disappoint you right now because I…
Don’t Feel Harmed, And You Haven’t Been | The Philosophy of Marcus Aurelius
Marcus Aurelius pointed out that regardless of the severity of circumstances, there’s always a choice in how we judge them. “Choose not to be harmed—and you won’t feel harmed. Don’t feel harmed—and you haven’t been,” he stated. Marcus’ instruction sounds…