Animals often do such things: re-grow limbs, inhibit respiration for a long time, have natural night vision, resist radiation and need not sleep. Attention! pearl rings jewelry May Cause Stain to You
Imagine you can feel a friend passing by just by smelling on the ground. What is Most Special in July? cz tennis bracelets Absolutely! If dogs can do this, why can`t people do? Of course, we have to admit, in this aspect, dogs have certain advantage because their olfactory receptor is 20-40 times that of human beings. Then, can we have a better nose?
Debra Fardoul, a professor in Florida state university America, has just found a way to make human olfaction is as sensitive as dogs` or wolves`. Fardoul removed this gene from a rat`s body, which improves its sensitivity to smell for 1000-10000times. Humans also have Kv1.3 gene. In theory, we can isolate this kind of gene with certain kind of drug and even one day we can also use this gene therapy to remoe this kind of gene selectively. After a little training, our capability of distinguishing aroma can be considerablely improved. Marseilles Leserka of medical school in Yale university though that we can distinguish the aroma between relatives and friends only after training for several days.
Even if we can`t figure out the meaning of bat`s frequent cries, isn`t it amazing and fantastic thing to hear their communication or to be good at finding the resources of weak sounds like owls. The acouesthesia of human fall within a limited frequence range. Because the hair cell acting as a responser of sounds locate in deep of the auris interna, what's more, we are not good at confirming the definite direction of sounds. And all these could be different. Combining technology with operation will give us qualified hearing ability as good as bats and owls. Artificial cochleas on sale that enables our ears to hear more new things, are connected with our auditory nerve or our brain directly. Apropos the ability to locate the sound origin, we have had the primitive echolocation function. "We do not make sounds like bats or dolphins. However, we indeed use echo to locate objects."
Fred Whiteman from US Hoelzer Hearing Institute, Kentucky State obtained inspiration from owls. The feathers around owl ears increase their sensitivity to directions and help owls to determine sound sources. He said: "As long as make a litter change for our ears' shape or size can dramatically improve our echolocation ability." The human auris externa can arrest some sounds with definite frequence, which is due to that these sounds come from the special directions. He said:" if we can enlarge the difference between front and rear, we can confirm the source of sound much better." In experiments, people who used wax to change the look of external ears could proper adjustment on the hearing changes after several weeks, which proved human`s brain could give flexible responses according to various changes.
It is discovered by microbiologists that a bottle of meat deteriorates after radiation. When they investigate the cause, they find bacterial called Dein. Further researches show that this bacterium`s resistance to radioactive rays is thousands of times that of humans. It possesses such ability because its ability to repair the harm caused by radioactive rays is super-strong. The method to destroy DNA by radioactive ray is to cut it into several fragments. When gene Dein got damage, its repair gene then be actived. To repair or replace the damaged DNA, Dein makes it just as the mechines in the DNA reproducing lab. In inner part of this germ, enzymes are attached to broken DNA fragments, and replicate these DNA fragments. Then combine these broken fragments together to form them to complete sequence as before.
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