Scientific American explains why our inner ear makes us dizzy.
Is the world spinning, and you don’t know why? Scientific American MIND editor Ingrid Wickelgren explains how your inner ear can throw you off balance.
Scientific American explains why our inner ear makes us dizzy.
Is the world spinning, and you don’t know why? Scientific American MIND editor Ingrid Wickelgren explains how your inner ear can throw you off balance.
This fall when you see geese heading south for the winter, flying along in V formation, you might consider what science has discovered as to why they fly that way:
As each bird flaps its wings, it creates an uplift for the bird immediately following. By flying in V formation the whole flock adds at least 71% greater flying range, than if each bird flew on its own.
People who share a common direction and sense of community can get where they are going more quickly and easily because they are traveling on the thrust of one another.
When a goose falls out of formation, it suddenly feels the drag and resistance of trying to go it alone… and quickly gets back into formation to take advantage of the lifting power of the bird in front. If we have as much sense as a goose, we will stay in formation with those who are headed the same way we are.
When the head goose gets tired it rotates back in the wing and another goose flies point. It is sensible to take turns doing demanding jobs…with people or with geese flying south.
Geese honk from behind to encourage those up front to keep up their speed. What do we say when we honk from behind?
Finally…and this is important…when a goose gets sick or is wounded by gunshots, and falls out of formation, two other geese fall out with that goose and follow it down to lend help and protection. They stay with the fallen goose until it is able to fly or until it dies, and only then do they launch out on their own, or with another formation to catch up with their group.
If we have the sense of a goose, we will stand by each other like that.
Did you know: you can fit all of the planets in our Solar System in between the Earth and the Moon?
To illustrate the distance between the Earth and the Moon, reddit user PerplexingPotato posted an image that placed the other seven planets in our solar system between them.
Planet Average Diameter (km) Mercury 4,879 Venus 12,104 Mars 6,771 Jupiter 139,822 Saturn 116,464 Uranus 50,724 Neptune 49,244 Total 380,008
The average distance from the Earth to the Moon is 384,400 km. And check it out, that leaves us with 4,392 km to spare.
So what could we do with the rest of that distance? Well, we could obviously fit Pluto into that slot. It’s around 2,300 km across. Which leaves us about 2,092 km to play with. We could fit one more dwarf planet in there (not Eris though, too big).
The amazing Wolfram-Alpha can make this calculation for you automatically: total diameter of the planets. Although, this includes the diameter of Earth too.
Science!
Illusionist Brusspup had to opportunity to work with a CLM 2 magnetic levitation module provided by Crealev while visiting The Netherlands. The device uses magnets to literally levitate a ring above it. By hiding the ring in other objects, you can blow the mind of your friends by inviting them into your living room to discover a stack of books floating on the coffee table.
SciShow host Hank Green explains the various biological elements that make hummingbirds unique.
Enjoy!