All Posts Tagged With: "bite strength"
Fear Jaws? Shark bites are weak, study finds
When it comes to jaw strength, lions and tigers win hands down
WASHINGTON - Sharks have wimpy bites for their size and can crunch through their prey only because they have very sharp teeth — and because they can grow to be so big, researchers reported on Tuesday.
Their studies of shark jaws show that lions or [...]
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The Center for Naturalism
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A Chameleon Sky
The sands of time are running out for the central star of this the Hourglass Nebula. With its nuclear fuel exhausted, this brief, spectacular, closing phase of a sun-like star's life occurs as its outer layers are ejected and its core becomes a cooling, fading white dwarf. In 1995, astronomers used the Hubble Space Telescope to make a series of images of planetary nebulae, including the one above. Here, delicate rings of colorful glowing gas (nitrogen-red, hydrogen-green, and oxygen-blue) outline the tenuous walls of the 'hourglass.' The unprecedented sharpness of Hubble's images revealed surprising details of the nebula ejection process and may resolve the outstanding mystery of the variety of complex shapes and symmetries of planetary nebulae. Image Credit: NASA, WFPC2, HST, R. Sahai and J. Trauger (JPL)
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