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John W
They said on Dirty Jobs that the alligator turtle has the 2nd strongest bite in the world, but what has the strongest bite?
Ali gators and Crocodiles have a very strong bite, so do Hippos. But is it one of those animals or is there something with a stronger bite?
Answer
GREAT white sharks really do have the meanest jaws on the planet, say experts.
The fierce ocean predators have a bite force of about 1.8 tonnes - that's 20 times more powerful than humans.
Even a large African lion, with a bite force of 560g, can't compare with the shark's massive mouth.
Scientists used the latest X-ray and scanner technology for their research.
The team at the University of New South Wales made 3D models of the skull of an 8ft male great white using images from a CT scanner.
They digitally "crash tested" their computer model to simulate different scenarios and reveal the powerful bite of the fearsome predator.
The experts also worked out the complex distributions of stresses and strains that these forces impose on the shark's jaws.
But even the great white seems small fry when compared with the carcharodon megalodon. Dubbed Big Tooth, it was a prehistoric shark that was 53ft long and had a bite of around 18 tonnes.
It hunted large whales by biting off their tail and flippers before feeding at will.
By comparison, T-Rex could only manage a bite force of around 3.1 tonnes.
Steve Wroe, the study's lead author, said: "Pound for pound, the great white's bite is not particularly impressive but the sheer size of the animal means that it tops the scales.
"It must also be remembered that its extremely sharp serrated teeth require relatively little force to drive them through thick skin, fat and muscle.
"Nature has endowed this carnivore with more than enough bite force to kill and eat large and potentially dangerous prey."
Great whites can grow to about 20 feet in length and live for 30-40 years.
Hope it helps you!
GREAT white sharks really do have the meanest jaws on the planet, say experts.
The fierce ocean predators have a bite force of about 1.8 tonnes - that's 20 times more powerful than humans.
Even a large African lion, with a bite force of 560g, can't compare with the shark's massive mouth.
Scientists used the latest X-ray and scanner technology for their research.
The team at the University of New South Wales made 3D models of the skull of an 8ft male great white using images from a CT scanner.
They digitally "crash tested" their computer model to simulate different scenarios and reveal the powerful bite of the fearsome predator.
The experts also worked out the complex distributions of stresses and strains that these forces impose on the shark's jaws.
But even the great white seems small fry when compared with the carcharodon megalodon. Dubbed Big Tooth, it was a prehistoric shark that was 53ft long and had a bite of around 18 tonnes.
It hunted large whales by biting off their tail and flippers before feeding at will.
By comparison, T-Rex could only manage a bite force of around 3.1 tonnes.
Steve Wroe, the study's lead author, said: "Pound for pound, the great white's bite is not particularly impressive but the sheer size of the animal means that it tops the scales.
"It must also be remembered that its extremely sharp serrated teeth require relatively little force to drive them through thick skin, fat and muscle.
"Nature has endowed this carnivore with more than enough bite force to kill and eat large and potentially dangerous prey."
Great whites can grow to about 20 feet in length and live for 30-40 years.
Hope it helps you!
What can I use to cast a mold from stone without hurting the stone?
disciple
I'm new to this, but does anyone know what medium I would use to make a mold from a stone. In other words, There is an old building with a beautiful design sculpted in to it. I want to copy this design. I know there is a material out there that I can press against the original design and make a mold of it and then cast the design in plaster. I just don't know what material I would use to do this without hurting the stone.... Help!!!
Answer
I think the sculpey or any clay will work. If you use normal clay, any residue left will dissolve in the next rain, just don't use brown clay on light stone... if you use water based clay you would have to cast your plaster into the mold while the clay is still wet.
As the clay won't be very stable just on its own, you should consider making a mother mold on top of that. That is a hard shell, which just gives support to the soft part of your mold so it doesn't deform. It depends on the size of what you want to copy if you need it. You could make the mothermold from plaster bandages, but don't put plaster directly on the stone.
Before you start, consider carefully the shape of what you want to copy and where undercuts are and where you have to put in parting lines. What technique you use for mold making really depends on the exact shape of what you want to copy. If the structure is something complicated, you may want to practice how to make molds from more simple structures first so you are aware what causes problems and get some experience in how to solve them.
Another completely contact free method is if you happen to be at a university where they have a 3D laser scanning camera you can borrow, you could use the 3D laser scanner then make a model of your structure in the computer from the scans. That you could print out using a 3D printer. that way you can scale the model to any size (though anything large will be expensive to print)
I think the sculpey or any clay will work. If you use normal clay, any residue left will dissolve in the next rain, just don't use brown clay on light stone... if you use water based clay you would have to cast your plaster into the mold while the clay is still wet.
As the clay won't be very stable just on its own, you should consider making a mother mold on top of that. That is a hard shell, which just gives support to the soft part of your mold so it doesn't deform. It depends on the size of what you want to copy if you need it. You could make the mothermold from plaster bandages, but don't put plaster directly on the stone.
Before you start, consider carefully the shape of what you want to copy and where undercuts are and where you have to put in parting lines. What technique you use for mold making really depends on the exact shape of what you want to copy. If the structure is something complicated, you may want to practice how to make molds from more simple structures first so you are aware what causes problems and get some experience in how to solve them.
Another completely contact free method is if you happen to be at a university where they have a 3D laser scanning camera you can borrow, you could use the 3D laser scanner then make a model of your structure in the computer from the scans. That you could print out using a 3D printer. that way you can scale the model to any size (though anything large will be expensive to print)
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Title Post: What animal has the strongest bite in the world?
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