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Its large teeth and jaws may have been devoted to chewing through the bones left from other animals' kills. Dinosaur Reproduction: Like Birds on Nests Wang Zhenghua (left), curator of a local museum, and Wang Fangchen, a scientist from Beijing, remove a fossilized dinosaur egg from a ...
The bowl base was glued to a waste block, which was then mounted to the lathe. Once all the walls were flat and smooth, and all the layers were glued on, the bowl could be given its final shape. After shaping and sanding, the bowl will be reversed using bowl jaws and the bottom fi...
You may also want to take into consideration the diameter and width of your wheels as well. Smaller diameter wheels tend to go faster, and narrower wheels allow for more control. If you are feeling every bump or your jaws go Brrrrrrr, i.e. vibrating when you skate outside, then your wh...
to turn a screw in the center, placing gradual pressure on the left and right halves of the upper jaw. This causes extra bone to grow between the two halves, increasing the width of the mouth so the teeth can shift into position. Expanders are mostly invisible, but patients can ...
expander to widen the arch of the upper teeth. The way an expander works is pretty simple. First, the expander is attached to the upper molars with dental cement. Then, an orthodontist uses a special key to turn a screw in the center, adding gradual pressure on both sides of the upper...
In order for the film to record these differences, the light has to start out with one wavelength and one phase across the entire beam. All the waves have to be identical when they leave the laser. Here's what happens when you turn on a laser to expose a holographic plate: A column ...
As arguably the most famous director in the world, Steven Spielberg's cultural impact is unmatched - from Jaws and ET to war epics Schindler's List and Saving Private Ryan, his films have imprinted on generation after generation for decades. ...
At 18, Katie Stubblefield lost her face. At 21, she became the youngest person in the U.S. to undergo the still experimental surgery. Follow her incredible story.
that can slip free of predators’ jaws and help them turn right-side up if they fall on their backs. Leatherback and softshell turtles have shells without the ring of bone around the edge of the carapace or the tough scutes covering it, m...