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

TIL: You Can Smell Through Your Skin | Today I Learned


less than 1m read
·Nov 11, 2024

[Music] Your nose isn't the only thing that can smell things. You can smell through your skin, and that was a big surprise on one of our expeditions. I dive into a lot of these underwater caves, what we call blue holes. Maybe at about 30 ft, you hit these wild looking colors; that's actually the pigments in the cells of individual bacteria.

And you start smelling something. Well, you're smelling hydrogen sulfide gas. [Music] It's that same rotten egg smell that you get out of sulfurous springs that in high concentrations is extremely toxic. You have a regulator in your mouth, you're wearing a mask, so it's not coming in your nose. You're not breathing it in, yet you're smelling hydrogen sulfide, and it's actually going through the pores in your skin.

[Music] [Applause] If you end up spending enough time in it, you stop smelling it. It actually deadens the olfactory nerves, and that's a sign we use to ourselves that we've been in it too long. Get through it or come up.

These animals live in our buildings. They get on our roofs; they even go into the sewer system to get away from traffic and people and can move for considerable distances using those tunnels.

More Articles

View All
How One Supernova Measured The Universe
This video was sponsored by Fasthosts, who are offering UK viewers the chance to win a 5,000-pound tech bundle if you can answer my Techie Test question later in the show. On May 1st, 2015, a group of scientists predicted that the following November, we …
Shifting absolute value graphs | Mathematics II | High School Math | Khan Academy
This right over here is the graph of y is equal to absolute value of x, which you might be familiar with. If you take x is equal to -2, the absolute value of that is going to be two. Negative -1, absolute value is one. Zero, absolute value is zero. One, a…
Where Is The Economy Going After The Pandemic? | Morning Joe
What is going on with the economy as prices seem to be going up everywhere? And you also just can’t seem to order anything. Things aren’t there. Yes, we have disruption to the supply chain, not just domestically but globally. But the reason that there is…
Preparing for Mules | Live Free or Die
In the wilderness, economy doesn’t exist. The only economy we have is an economy of motion. I have no electricity, no running water. If the world came to an end, I could totally take care of myself. My blacksmithing puts food on the table; it’s my main me…
Kevin O'Leary Gets Triggered
Refused to spend money on two things. Number one, I think everyone knows, is, uh, coffee. I think it’s absolutely ridiculous the markup of coffee at Starbucks and Coffee Bean and a lot of those places out there. So I just make it home for 20 cents. I lov…
10% Rule of assuming "independence" between trials | Random variables | AP Statistics | Khan Academy
As we go further in our statistical careers, it’s going to be valuable to assume that certain distributions are normal distributions or sometimes to assume that they are binomial distributions. Because if we can do that, we can make all sorts of interesti…