Physicist Calculates Trajectory of Tiger At SF Zoo
KentuckyFC writes "Is it really possible for a 350-pound tiger to leap a 12.5-foot barrier from 33 feet away? (Said another way: a 159-kg tiger, a 3.8 m barrier, and 10 m away.) A physicist at Northeastern University has done the math, a straightforward problem in ballistics, and the answer turns out to be yes (abstract on the physics arXiv). But I guess we already knew that following the death of Carlos Souza at the paws of Tatiana, a Siberian Tiger he had allegedly been taunting at San Francisco zoo at the end of last year."
It's just nice to see that the zoo's kharma system was working. Unfortunately, someone meta-modded the tiger with a shotgun.
Don't disappoint your bird dog. Go to the range.
Seriously, you'd think the people who designed the enclosure would know how to do that kind of math... or at least be smart enough to get a consult. I wonder how many aquarium designs they went through before they finally made one that held its contents properly...
=Smidge=
All prior researchers have not returned from the jungle. Information is incomplete.
A feeling of having made the same mistake before: Deja Foobar
I did a similar calculation a while ago.
An object of 750kg can accelerate to 60km/h in 5 impulses (rapid pushes).
How far will an object of 75kg travel when one such impulse is applied at angle of 45 degrees upward?
The 750kg object is a horse. About 5 pushes of hind hooves are enough to reach the full speed.
The 75kg object is a human kicked by the horse (remaining motionless with a counter-push of front hooves).
The result was something like 30 meters. The damage was equivalent to fall from 6th floor.
And they tell us horses can't say "no" when they don't want sex.
45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
Unfortunately, the zoo made their initial estimates for the enclosure based on the ballistic characteristics of a Southern Asian tiger carrying a coconut, not an unladen Siberian tiger, so their calculations were off slightly.
"Och, someone save me from the wee turtles! They were too fast for me!"
Blank until
before I finally decide.
Two hunters are in the jungle and they see a tiger coming towards them at the other side of a clearing. Fred raises his rifle, and pulls the trigger. It misfires. Then Bill's gun jams. The tiger is steadily approaching, licking its lips. Fred suddenly takes off his pack and starts limbering up. "What are you doing," says Bill, "you'll never outrun a tiger."
"True - but I only need to outrun you!" replies Fred.
Confucius say, "Find worm in apple - bad. Find half a worm - worse."
I wouldn't mess with the turtles if I were you. While the tiger's retribution may be swift and deadly, the turtle is content to bide his time, and has a much colder, darker heart. Once you get on a turtle's bad side, your life will never be the same. The turtle will make the rest of your long life a living hell. A turtle is cold and evil, and he never forgets.
They did, unfortunately the calculations were only accurate for spherical tigers leaping in a vacuum.
Who ordered that?
I took engineering physics in college, and from what I recall all formulas only worked on massless, frictionless systems and didn't account for air resistance. Now, how the hell did a physicist crunch these numbers?
I swear to God...I swear to God! That is NOT how you treat your human!
*whoosh*
Emphasis mine.
Coming up next on Mythbusters :-).
Wanna bet the tiger would still be in its cage if these drunken idiots had decided NOT to shoot it with a slingshot?
If you are going to attack a large predator which both outmasses you and can run much faster than you then you really don't want to use a weapon which will simply annoy it.
Now jump that fence or I shall taunt you a second time.
What if a child with a limp walks by the tiger enclosure? Or someone with a bandaged wound? Or a stray dog gets into the zoo and barks at the tiger?
What if these jerks had been teasing the tiger on a day when the zoo was full of people instead of a holiday when there was almost no one present?
And actually there WAS a case of a stray dog being attacked by a tiger in Tennessee. However that was because the dog (also not big on brains) swam across the moat. Apparently he didn't read the "objects are larger than they appear" sign. Fortunately for the dog, the tiger was young and inexperienced at hunting and keepers were able to distract it and get the dog out. The dog still required surgery for the puncture wounds it received.
I seriously doubt the tiger would have breeched the pen except that it was enraged. This was no prey drive in action--the tiger was not hunting for food (or a limping child). It was just very, VERY pissed off. That doesn't mean the zoo is not responsible, but I would put responsibility at 50-50 between the zoo and the jerks. If one or the other had not been doing the wrong thing, this attack wouldn't have occurred.
If you've never been modded as "flamebait" or "troll," you've never tried to argue a minority viewpoint here!
Here's proof. http://www.youtube.com/watch?v=LwQ4hDsP_jg
Next, they leapt for the lame and wounded; I feared not for I was not hurt.
Next, they leapt for the young and tender; I feared not...
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Assume a spherical tiger in a vacuum...
Actually, they use SI. CGS is deprecated, but still appears in lots of older papers, textbooks and the like. Multiple metric systems? The horror!
(Although some would argue that realer physicists just use electronvolts, the speed of light and the Planck constant for everything. Even in situations that don't appreciate it, like tiger attacks. Consider a tiger of mass 8.92*10^37 eV...)
Tedious Bloggy Stuff - hooray?
I guess we all know what to pack next time we go to the zoo then.
.. shooting *cough* pictures of distant animals"
"What's in that case sir?"
"Oh it's just my photography equipment. I have a very high long zoom lens for, uh
which is totally what she said
Obviously the tiger evolved, and the zoo budget didn't include studies of the tiger's new superpowers. Same thing happened with the flying squirrel and the electric eel, but in those cases nobody died.
- First they ignore you, then they laugh at you, then ???, then profit.
Physicist conducts analysis, concludes that thing which already happened is theoretically possible.
Or as a friend of mine commented, "If they were six-foot cuddly bunny-rabbits, we'd have called them bunny-rabbits, not tigers!"
Bill Stewart
New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
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Please use the proper left-focused lenses when reading Slashdot. Unauthorized eyewear prohibited.
I just read Slashdot for the articles.
It doesn't matter. We all know it'd be a kangaroo court.
When someone says, "Any fool can see
Mark: Oh . . . I used to be the captain of my own cruise ship. It was the kind of boat folks rent for weddings, parties, you know, that kind of thing. But on the night in question it had been rented for a prom. Oh, the girls looked so lovely in their dresses, the boys such fine little gentlemen in their tuxedos. They were all drinking and dancing and spiking the punch. I was dizzy with delight when suddenly - my ship sank. We all went into the water. Then came Skoora, picking us off one by one by one by one. Till only I was left. And as he bore down on me, he paused as if to say, "What can I do? I'm a shark. I eat." And then he cut me in half, cut me right in half - my wife measured me, I'm exactly half my former length. But as he swam away with my lower extremeties dangling from his jaw, I swear to god he was crying.
.Skoora, the gentle shark.
Kevin: Crying?
Mark: Yes, crying. Oh to be sure, he's a brutal killing machine. But he shows more remorse than I've ever seen in a human.
Everyone: . .
Skoora, Skoora. He's a killer with a broken heart.
Don't blame him! He blames himself.
Don't hate him! He hates himself.
Skoora, Skoora. Skoora the gentle shark.