how can human feel light?
104338
lock yourself in a dark place and come out a day later, you'll feel the light in your eyes.\n\ngo to the mooon where gravity is lower.
202376
The most important - light sensitivity.
230711
People sort of understand waves and they understand particles, light might be a disturbance in the space time continum. Just a definate bit energy with an uncertainty where it is, traveling. Some "particles" exist for such a short time , they are more a resonance. I am looking forward to new research and thoughts on nature of light.
810212
Your absolutely correct. We receive both light and sound wave energy when we see or hear anything.\nI don't believe that's what gives us that strained feeling if we watch TV for extended periods - I believe that is just our body's way of telling us that it's time to rest a bit and give the ol' eyes a little time to recuperate. \nThat's because our bodies use more energy to process these signals than the signals provide.
801276
Light is a particle. Wave is its function.
522524
The light is reflected
127947
Sun on your skin can make you warmer than the ambiant tempurature. When you are outside you feel the sunlight in addition to the 65 degrees.\n\nAlso, your body measures warmth in relations to experiences.  Your body knows what normal room temp feels like.  If its colder than that, you feel cold.  Same when you go outside.\n\nI hope that all made sense.
985628
Roughly, light is like a wave you might see in the ocean except it's a bit different.  An ocean wave is energy in a mechanical form(in the form of motion here) that is travelling through water.  A light wave is energy travelling but in an electromagnetic field.  It's not quite right but you can think of it as an ocean wave travelling through an ocean of electromagnetic field instead of water as a rough approximation.\n\nJust like waves in water can be short or long, electromagnetic waves can also be short or long.  Why do you care? because you can see some electromagnetic waves that have a range of lengths (about 400 to 700 nanometers is the range).\n\nYour eye can tell the difference between shorter and longer waves and the experience in your brain is different based on the length.  How is it different? because the color you see is different.  Shorter wavelengths are violet and blue, longer ones are red and other colors are in between.\n\nThere's something else too.  What happens if you open your eyes are in a room with NO electromagnetic waves of any kind? you will see blackness.  Blackness is how your brain interprets the reception of no visible light on your eyes.  So when you see blackness it means that there is no visible light coming from that direction (there could be some that has a wavelength that is too short or long but your eye cannot see that).\n\nIt comes down to the fact that blackness is what you see in the absence of visible light so you can't make black light because blackness is not something associated with a type of light.  So if you want to say you can make black light then bring your friends into a room and tell them to look closely at a "special" bulb and then turn it off.
737137
Light is a very odd thing to try and understand.  It behaves as a wave and as a stream of particles...we call this a dual nature.  You just have to accept it, really.  Light is like nothing else for it has no mass and behaves in two different ways.
354495
A complex question that needs a highly simplified answer.\n\nA photon of light has different energy depending on the type of light, some light does go through us, but that ight is not visible to us.\n\nX-rays for example pass through things nicely, however they can be blocked sometimes by dense material (such as bone and metal), X-rays are a higher energy than visible light.\nEven higher energy is Gamma rays... a photon of this form of light can theoretically pass through several metres of lead, sometimes more.\n\nAt the other end of the spectrum is Infra red light, which is just outside our visibilty, when you feel it, it is heat. Consider that it can be easily insulated just by putting some sort of thick barrier between you and it.\nAlpha and beta radiation are such low energy that they are actually particles (fast travelling helium, and protons respectively). an alpha particle can be blocked by a thin piece of paper. A beta particle can be blocked by your skin.\n\nNow... visible light is between the extremes of theose above. As an experiment hold a torch to the palm of your hand and you can actually see light coming through. SO some light does get through. But most of it does not.\n\nVisible light is a happy medium with just enough energy for us to see. Any more energy or any less energy in the light and life would be difficult\n\nConside that if we could only see gamma rays then we would not see much at all, because the gamma rays would not bounce off anything.\nAt the other end, if we could only see beta particles then the world would be very dark because all the beta particles would be absorbed before they reached us.
77550
txgurl, I am going to have to disagree with the question itself, and, as a result, answer your question.\n#1, you say that wind cannot be seen.  The real statement would be that wind cannot be seen with the naked eye.  Wind is the dramatic passage of air molecules from an area of high pressure to an area of low pressure.  This means, that wind is actually air particles zooming past you.  If you were to pause the wind mid-stride and put part of it under a microscope, you would see millions of molecules and tiny particles.  That is what wind is.  So, it can be seen and has been seen, just not with the naked eye, because it's elements are too small.\n#2, Light cannot be touched.  Acutally, scientists believe that light is made up of photons, which are mass-less particle with a standing wavelength of energy inside.  When these particles strike your hand, the outer shell breaks appart, and the energy is released into your hand in the form of energy, both visible and thermal.  So, for the brief second that the photon is in contact with your hand before the shell dissolves, the light can be touched.  It is just so tine (mass-less in fact) and there are so many of them, that our physical senses cannot detect them.\n#3, Smell has no color.  It is believed that all the senses are interrelated.  This means that light has smell and feel and taste, that color has a taste smell and feel, etc.  How is it that some insects are attracted to red flowers and yet they are color blind?  It is because they can smell the color.  Each color has a place in the smell spectrum as well as in the light spectrum.  But, to answer your question, we cannot smell it because, like out eyes can only detect a small range of light, out noses can only smell a small portion of the odor spectrum.\n#4, Sound has no shape.  Actually, sound is in the shape of a sphere.  Once again, just like wind, there would be no sound in a vacuum.  When a sound is made, the sound waves oscillate out from the source from every direction.  Sound travels though solids faster than through gases.  This is how they detect earthquakes.  They have instruments that pick up and map the sound impulses through the gound.  This makes a picture on a map, and they can thus tell the direction and power of the earthquake.  have you ever seen a jet break the sound barrior?  At the moment of the break, a cloud of moisture is formed in a cone shape around the jet.  This cone shape can be demonstrated by blowing up a balloon part of the way.  Then poke your finger hard into one side of the balloon.  The balloon will become shaped like a distorted cone.  Now, this is like the sound.  Keep pushing and the baloon will pop.  Kinda like the sonic boom caused when the jet breaks the sound barrier.  This is the shape of sound.  Again, our sences are too finite to be able to detect the individual molecules and thus, we cannot see the shape.  But a microscope could and computers can detect and generate images of what we could see, if only our sences were more powerful.  Hope this is of some assistance to you.
689872
Everything in the known Universe is energy, the mysterious power that holds atoms together, makes trees grow, keeps your heart beating and the Earth spinning through space. This energy vibrates at different speeds, or wavelengths. Matter may be understood to be very slow-moving energy relative to, say, sunlight. We can use the electromagnetic spectrum, a chart of all the types of energy science has measured, to better understand this concept. X-rays, radio waves, microwaves, and television transmissions are all to be found on the electromagnetic spectrum, as well as visible light, within which we find the seven colors of the rainbow: red, orange, yellow, green, blue, indigo and violet. All of these energy forms have characteristic frequencies at which they vibrate.\n\nIf you tune your radio to a frequency of, say, 102.5, you'll always get the same station. The station sends out its programming at a particular frequency; your receiver transforms the radio waves into audible sound waves. One form of energy is transmuted into another form.\n\nColorology, the science of color, is based on the same principle. Each of the seven colors and their shadings vibrate at a characteristic frequency; anything you can see (visible light) must also be vibrating at one or more of those frequencies. Our physical bodies "tune in to" -- or receive and resonate with in a particular way -- each of the seven colors of the rainbow. Sunlight contains all of those frequencies and more (ultraviolet rays, cosmic rays, etc.)\n\nHow do our bodies "tune in" to these frequencies? We all have seven major endocrine glands in our bodies, which regulate the functioning of bodily systems (circulation, reproduction, respiration and so forth) by secreting complex chemicals called hormones. Hormones act to stimulate or depress bodily activities as necessary to maintain a state of dynamic balance that we experience as "good health." As a result of excessive or insufficient amounts of hormones, physical, mental and/or emotional imbalance (dis-ease) can occur.\n\nEach of these seven endocrine glands, being a visible energy form, is vibrating at the frequency of one of the colors of the rainbow. We can, therefore, by various methods expose our bodies to these colors and literally, physically affect the vibratory rate of the endocrine glands, which in turn affects the rate of hormone secretion, and thus the functioning of the organs. This holds true for the brain as well; therefore, emotional and mental states are also influenced.\n\nChildren, the elderly, anyone in poor health, and current or recovering substance abusers (all of whom may be in a state of energy imbalance) are usually overly sensitive to the effects of color; its use should, therefore, be carefully monitored with these groups.\n\nUsing Color Practically\nIt's usually best to start by balancing the body using all the colors; then, once you know what system (color) is out of balance, you can work more extensively on that particular area, either stimulating the energy with that system's color, or by suppressing the energy with the complementary color. When balancing the body, always start at the base of the spine (red, the "root" chakra or energy center) and work your way up the torso to the top of the head (violet, the "crown" chakra). The body more easily adjusts and accepts the energy if the frequencies progress from longer to shorter wavelengths ("slower to faster").\n\nThere are a number of simple, inexpensive and effective ways to intentionally employ color:\n\nVisualization -- Simply imagine a ray of light of the desired color penetrating and bathing the dis-eased area. Researchers have found that thoughts have a tangible effect on the physical body, measurable by EEG machines and other methods.\n\nSolarized water -- Place a clear, glass bottle filled with distilled or purified water and covered with colored cellophane in direct m
1017409
Nobody has the complete answer, but many are "dying" to find it! The religious, claim that the light is God. Scientists and secular physicians claim the phenom is "anoxyia", the lack of O2 to the brain. The brain then secretes chemicals that ease the mind into the natural process of dying as all the body's systems shut down.  It all depends on your perspective. Do you believe in God and the afterlife, or do you believe in "the Big Sleep". If you find out for certain, I'm not sure I want you to contact me....because you'd have to be dead!
590116
When light falls onto an object a part of the spectrum is reflected and another part is absorbed. Depending on the (micro)texture of the object, different parts of the spectrum are reflected and we sense another color. Since there is a differennce in microtexture between wet and dry clothes, we experience a slightly different color.
887711
Light IS energy...sorry I can only think of one...:(
171152
You have seasonal affective disorder. (SAD).  There are lamps you can buy that simulate sunlight that are said to work quite well.
416072
It depends on the wavelength of the light and its energy.