Anixx
  • Member for 9 years, 11 months
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Does red light preserve your night vision?
5 votes

As mentioned in the other answer, red light does not affect the melanopsin receptors in eyes. These receptors not only regulate body rhythm but also regulate the diameters of the eye pupils. Once they ...

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Why do our eyes "wrap" hue from UV to IR?
1 votes

The question has an invalid premise. Namely, that the UV light looks like magenta/purple. It is not the case. While it it true that approaching UV end the perceived color becomes more purple (because ...

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What is the species of these mushrooms?
Accepted answer
1 votes

This is Clitocybe Nebularis, an edible species.

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Are there any structures in mammals that are used only by males?
1 votes

Females of Rangifer tarandus have horns which only used by males in competitions. Other species of deer only have males with horns. Apart from this, possibly, clitoris and vulvar lips have no purpose ...

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How come our thyroid glands don't suffer awful mutations (or do they)?
0 votes

The thyroid gland contains iodine, but is usually not radioactive. In the contaminated area, it can adsorb radioactive iodine, which would lead to a health danger. In such circumstances, pills with ...

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Why is cold water more refreshing than warm water?
0 votes

The organism as a thermodynamic machine does need a coolant. The more difference in temperature the more efficiently thermal machine can use energy. Also in all processes in organism it is produced ...

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Can a tumor produce something not currently found in our own bodies?
0 votes

Definitely NOT for cancer. What you are speaking about are teratomas - results of incorrect development of stem cells. Stem cells are the type of cell that can become any other cell type. That way ...

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What evolutionary reason is there for having the urinary duct and reproductive organs so close together?
-1 votes

Human body has three channels for excretion of substances, one for each of the three physical phases of matter: lungs for gaseous substances, such as CO2, anus for solid substances such as feces and ...

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