that's really science

anonymous asked:

Why are there still so many people who believe that cheetahs are the fastest animals alive when it's clearly peregrine falcons?

Listen, it’s all in how you’re going to split hairs or various other integuments on this one. Without any qualifiers, peregrine falcons are the fastest animal. However, they hit their record speeds of 320km/hr+ in free-fall - so, once you start getting into “fastest animal moving under it’s own power”, things get messy. When it comes to powered flight, peregrines only hit about 65-90km/hr.

Cheetahs aren’t even a close second in the unqualified “fastest animals” category though, with their speeds of ~120km/hr; a whole slew of other speedy birds who enjoy plummeting to their deaths just haphazardly smashed their way in there with no regard for those poor earth-bound mammals

So let’s get into some qualifiers. Fastest self-powered movement? Nope; Brazilian free-tailed bats noodle around at a casual 160km/hr - and, as you may notice, this also means cheetahs aren’t even the fastest mammal. It’s only once we rule out everything that isn’t a terrestrial mammal that cheetahs finally take the crown. You tried, cheetahs.

This isn’t even going into speed options beyond our restrictive, human-sized measurements - for instance, in terms of objective body lengths per second the Southern California mite just absolutely crushes it with 322 body lengths per second (whereas cheetahs only score at about 16). To translate, this is the equivalent of a human running 2,092km/hr

me, finding my department’s electron microscope room: OwO what’s this???

I have a real problem with the phrase “Mad Scientist”, it’s just too broad a term. I mean sure, mad science has advanced since its conception in the 1600s, and maybe back then you could have been a mad scientist, although even then the term would have been mad natural philosopher, but these days the mad sciences are pretty specialized, are you a mad physicist? a mad chemist? a mad botonist? a mad taxonomist? a mad entomologist? Every field of mad science has made important contributions to our mad understanding of the universe, but they’re entirely different fields of study and lumping their practitioners into one big mad group just feels reductive and unhelpful because there are mad teenagers out there trying to figure out what to do with their lives and they could be the next generation of mad undergrad and mad grad students, but if we scare them off by presenting mad science as this unapproachable mad monolith then future mad research will be poorer for it :\

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[ 20 • 3 ] science ft. slightly dead succulents!

Why the frick is every. single. march. on SATURDAY?

Like y’all know that Sabbath-observant Jews (*coughs* LIKE ME) are completely excluded, right??

Unless we live within walking distance (*coughs* WHICH I DO NOT) then we can’t travel to them on Sabbath.

IT’S PISSING ME OFF.

IT WOULD BE NICE IF A SINGLE MARCH WOULD BE INCLUSIVE FOR SABBATH-OBSERVANT JEWS SO WE CAN SHOW PUBLIC SUPPORT FOR CAUSES WE CARE ABOUT TOO.

nerd shaming

Teraterpeton, an unusual archosauromorph from the Late Triassic of Nova Scotia, Canada (~235-221 mya). Probably around 1m long (3′3″), it was a member of the trilophosaurs, a group of lizard-like archosauromorphs with toothless beaks at the front of their jaws and chisel-like cheek teeth at the back.

It had a very long, thin, rather bird-like snout, with a huge nasal opening, and a euryapsid-type skull with the lower temporal fenestra closed off – a condition seen in some marine reptiles like ichthyosaurs and plesiosaurs, but unique among all its close relatives.

Its forelimbs also had deep narrow blade-like claws, and the rest of its body is only known from fragmentary remains. It was clearly adapted for some sort of highly specialized niche in its ecosystem, but we just don’t yet know what that niche actually was.

Maybe one day we’ll find more complete fossils of this odd animal and get some answers… or even more surprises.

One thing that I learned from Thor Ragnarok : Tony Stark wears very tight pants.

Daily Science Dump: Newton’s Three Laws of Motion Edition

Good day everyone!!! So today I decided to do a simple topic because we’ve been covering pretty difficult topics recently. So to give our heads a little break, I thought I would do something simple. 

Newton’s First Law of Motion

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

This law is probably one of the easiest to memorize and to truly understand. So imagine a ball on a flat surface. It’s not doing anything. Just chillin. That ball will continue to just sit there, motionless, UNTIL a force is applied on that ball. Easy right? What if it’s motion? Well let’s forget about friction for a minute. Pretend that doesn’t exist. If that ball is moving, it will continue to move at the peak speed until a force is applied to stop it. This could be best demonstrated in space. If you threw the ball with, say, 5 Newtons of force, it will continue forever and ever at the speed it generated from 5 Newtons. But on Earth, If we rolled a ball on a flat surface it will eventually stop since friction counts as an applied force. Pretty simple, right? Easy stuff.

Newton’s Second Law of Motion

The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

This law is basically a continuation of the first law. This is where F=ma comes in.  Literally all it means is that if you have a moving object and you increase the force applied on the object, the acceleration will increase. But if you increase the mass while keeping the force applied the same, acceleration will decrease. So say you have a 5kg ball with a force of 5N being applied. The acceleration of that ball, according to F=ma, (algebra would have acceleration equal to the force divided by mass), would be 1 meter per second per second. But what happens if we increase the force from 5N to 10N? Well then the math would be 10/5 instead of 5/5 for acceleration would then equal 2 meters per second per second. If we increase the mass from 5kg to 10kg and leave the force at 5N, then acceleration would decrease to ½ meters per second per second. Yay MATH!

Newton’s Third Law of Motion

For every action, there is an equal and opposite reaction

This is another pretty easy one. This is just saying that whatever force you exert on an object, that object will be pushing back the same amount of force. Now I don’t mean literally pushing back. Take a look at this video:

This is a prime example of Newton’s Third Law as a fail. The bottle can only shoot off if there is a force going the opposite way, hence the water pressure. Take notes, kids. If you don’t know Newton’s Third Law, you’ll end up like the kid in the video! Newton’s Third Law is essentially why things move. A car can go forward because the frictional force is going backwards. That is also why we can walk forward, If you were on ice, where there is no friction, if you tried to walk normally, your foot would fly straight back. 

So that’s literally it, guys. lol. I just wanted to give your heads a break because I know mine needed a break for sure. If you all are starting classes soon, I hope you all have a wonderfully successful semester! 

As Always,

Stay Nerdy!

R.L.

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Hands and Feet portfolio for life drawing class. Follow the thrilling tale of Terry as we attempt to fulfill our duty at the treacherous City Zoo!!

We were supposed to study animals and compare their anatomy/mechanics. I couldn’t come up with a clever theme and since I kept calling myself garbage because of that, I created Terry the Janitor to help me through this ordeal. I hope the lil guy is healing up nicely 👌

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Jisuk and RapMon’s attempt at the Prisoner’s Escape Rope trick. [x]