Why do different instruments (or voices) in the same note still sound different (a violin and a piano sound differently even if they're playing the same note)?

This is extremely weird and difficult to explain…which is why we’re lucky to have Vi Hart: https://www.youtube.com/watch?v=i_0DXxNeaQ0

-Hank

Stardust Discovery, and 2 Planetary Conjunctions

SciShow Space shares the latest developments from around the universe, including news about the first material ever collected from outside the solar system, and a backyard astronomers’ guide to two upcoming planetary conjunctions.

effyeahnerdfighters:

edwardspoonhands:

WIN MY KIDNEY!
Not my actual Kidney. 
Danny Weinkauf has, for like 15 years, been the bassist for They Might Be Giants. He wrote their song “I’m a Paleontologist" which you may have heard…he’s also won two grammies and written and produced music for dozens of TV shows. So when he was like "Hey, I’m doing a children’s album, do  you want to write a song with me?" I was like "GHGHHFHFHHDHWWW!"
So, together we wrote “The Kidney That Lived in Four People" which is the (semi) true story of a Kidney that existed inside of four different bodies (so far). The names have been changed, everything else is true.
A couple weeks ago, we decided it would be cool to hold a little contest.
So, for all filmmakers, animators, artists, and etc…if you’d like to create a music video for the song, the winner (as selected by us) and three runners up will win this very nice Kidney model signed by me and Danny. The top submission will have their video posted on Hankschannel and Danny’s YouTube channel. 
You can get Danny’s full album “No School Today” on Amazon and iTunes and most other places where music comes from.
Full information on the contest is here.

Reminder! Entries are due by October 30th!

Attention video makers! Hank cowrote a song with Danny Weinkauf about a very mobile kidney, and they recently launched a music video contest. Get those creative juices flowing!

effyeahnerdfighters:

edwardspoonhands:

WIN MY KIDNEY!

Not my actual Kidney. 

Danny Weinkauf has, for like 15 years, been the bassist for They Might Be Giants. He wrote their song “I’m a Paleontologist" which you may have heard…he’s also won two grammies and written and produced music for dozens of TV shows. So when he was like "Hey, I’m doing a children’s album, do  you want to write a song with me?" I was like "GHGHHFHFHHDHWWW!"

So, together we wrote “The Kidney That Lived in Four People" which is the (semi) true story of a Kidney that existed inside of four different bodies (so far). The names have been changed, everything else is true.

A couple weeks ago, we decided it would be cool to hold a little contest.

So, for all filmmakers, animators, artists, and etc…if you’d like to create a music video for the song, the winner (as selected by us) and three runners up will win this very nice Kidney model signed by me and Danny. The top submission will have their video posted on Hankschannel and Danny’s YouTube channel. 

You can get Danny’s full album “No School Today” on Amazon and iTunes and most other places where music comes from.

Full information on the contest is here.

Reminder! Entries are due by October 30th!

Attention video makers! Hank cowrote a song with Danny Weinkauf about a very mobile kidney, and they recently launched a music video contest. Get those creative juices flowing!

Why does mint feel cold and chiles feel hot?
So, the way we experience…pretty much everything is via proteins and ion channels. Very basically…there are proteins that are designed to sense certain things….the presence of sugar, whether they’ve been struck by light, the concentration of CO2 in the blood. When they sense those things, they open an ion channel changing the electrical charge of the cell, which then get transferred through the nervous system to the brain where that area of the brain is like “Cool…we’ve got sugar…or light…or too much CO2 in the blood.”
Well, sometimes these proteins can be fooled. A chemical will, just by chance (or by natural selection) be able to bind with that protein and cause that whole cascade to occur without the real stimulus. This is what happens with menthol in mint and capsaicin in peppers. Those chemicals bind to the cold / hot receptors respectively, fooling your body into thinking that something cold / hot is happening in your mouth. Pretty cool.
-Hank

Why Do Dogs Eat Grass?

Why do dogs eat grass? A look at your pup’s wild relatives may give you a sense of what dogs’ diets are really like.

The Supernova of 1054, Our Very Special “Guest Star”

All of humanity likely saw it, a brilliant supernova that lit up the daytime sky in 1054. But 960 years later, there’s still a lot we dont quite understand about the famous celestial phenomenon.

Are Blue Eyes Endangered?

SciShow explains the genetics — and physics — behind why blue eyes are blue, and what the future may be for the trait. Spoiler alert: Blue eyes aren’t really blue! SciShow explains!

What Really Killed the Dinosaurs?

What wiped out the dinosaurs? Most of us were taught it was a killer asteroid — which is true. But it turns out there was more than one disaster movie playing at the cineplex that was Earth 66 million years ago.

Why do jet airplanes get better fuel efficiency at high altitudes?

Because there’s less air! OK, so there are two reasons airplanes have to expend fuel. First, to keep themselves off the ground and second to keep themselves moving forward.

Lots of air around helps planes get lift, but planes can generate more lift in other ways…by having larger wings or traveling more quickly, and more quickly is what we want…so let’s just do that! Energy expended to move the plane forward is only limited by the amount of drag on the plane and the only way to reduce that is to make the plane more aerodynamic (which we’ve done pretty much everything we can to achieve) and by making it fly through thinner air. There are far fewer air molecules at 30,000 feet than at sea level, so the plane is literally running into fewer molecules and thus it can travel more efficiently.

Of course, at a certain height, planes have to have such large wings or travel so fast to generate lift that this efficiency gain is no longer productive. The engineers have done the math and found the optimal height for efficient travel and designed planes to operate best at that height. Yay engineers!

-Hank

We’re bad judges, better teachers, and video games are pretty good for us!

Humans judge each other within 33 milliseconds of seeing each other! We learn better if we think we have to teach someone else, and video games are good for us!