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.

Cumulative geometric probability (greater than a value) | AP Statistics | Khan Academy

2015 AP Physics 1 free response 1b

View All

Inside Bill Gates’ 2021 Stock Portfolio

[Music] So Bill Gates, we all know him, we all love him. He is currently the fourth richest person in the whole world, and we know him because these days he uses his wealth to fund the Bill and Melinda Gates Foundation, which does fantastic charity work a…

How I made $136,474.43 in 30 days as a Real Estate Agent

What’s up you guys, it’s Graham here. So I ended up getting quite a few comments on my income breakdown video for one month in particular, and that was in April of 2017, where my income that month was a hundred and thirty-six thousand four hundred and sev…

3 rules to quickly improve your life

Okay, so here are three rules to live by that will quickly improve your life. Rule number one: Follow the path of most resistance. Now, this obviously isn’t an absolute rule. Like, you probably have a lot of resistance towards driving into oncoming traff…

Discontinuities of rational functions | Mathematics III | High School Math | Khan Academy

So we have this function ( f(x) ) expressed as a rational expression here, or defined with a rational expression. We’re told that each of the following values of ( x ) selects whether ( f ) has a zero, a vertical asymptote, or a removable discontinuity. …

Bill Belichick & Ray Dalio on Having Great Relationships: Part 2

But the generosity part of it was really, I thought that was so on point. Well, it’s, we’re just talking about the different versions of that, right? And, and, and you know that you have succeeded not only in those two dimensions. You know, that day on th…

Alienated | Vocabulary | Khan Academy

Hey wordsmiths! Just checking in; you doing okay? The word we’re talking about today is “alienated.” “Alienated” it’s an adjective and it means feeling excluded and apart from other people. Kind of a bummer word, but at the same time, a fascinating one. …

This Is A Light-Nanosecond!

More Articles