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nothing else than air
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∙ 14y ago
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What the right foods for people over 90 years old?
Right foods for individuals over 90 years old include nutrient-dense options like lean proteins, whole grains, fruits, vegetables, and healthy fats. It's important to focus on foods that are easy to chew and digest, and to ensure adequate hydration. Consulting with a healthcare provider or nutritionist can help create a personalized meal plan that meets specific needs and preferences.
What is the main function of the pupil of the eye?
The pupil serves two important functions - to control the illumination in the eye, and to improve the optical quality of the image on the retina. The first function is obvious - the smaller the hole, the less light gets in. It therefore serves to regulate the light level within the retina. The second function is very important because as the pupil gets larger, more aberrations are created and the image on the retina gets "messier". People with no iris (aniridia) have very poor visual acuity because the eye can't get a sharp image, both because there is to much light (over-saturation) and because there are lots of optical aberrations present. One final function of the pupil is to increase depth of focus, similar to an aperture stop on a camera. This basically increases the range (distance) over which things appear sharp.
What are the best exercises recommended for elderly people that want to stay in shape?
For elderly people, simple exercises such as light jogging or powerwalking can be good to keep the lungs strong. As far as strength, push-ups can be very effective.
Why do your pupils constrict?
Pupils constrict in response to bright light to reduce the amount of light entering the eye and protect the sensitive retina from potential damage. Conversely, pupils dilate in dim lighting conditions to allow more light into the eye for improved vision in low-light environments.
Can menopause be stopped once it has started?
Menopause is a natural biological process that cannot be reversed or stopped once it has started. Hormone replacement therapy can help manage symptoms of menopause, but it does not stop the process itself. Consulting with a healthcare provider can provide guidance on managing symptoms and health during this transition.
What is very light light but can't be lifted?
air
What is the synonym for heavy?
light, rough, difficult , lifted
Is there a weight that cannot be lifted on earth?
ellie mcdonald can not lift 200 grams
Why do satellites suddenly emit a very bright white light?
Planets cannot emit light. They merely reflect light from nearby stars.
What does a quantum look like?
A 'quantum' is a very very very small, but discrete amount of something. For example a quantum of light is called a photon, you cannot get a smaller 'piece' of light than one photon.
How can you prove that light travels very quickly?
To prove that light travels very quickly, first, you need a flashlight. Because a flashlight is giving off light into a focused circle, it is still light. If you turn on the flashlight, as soon as you hit the switch or button, the circle of light at the other end shining on something appears instantly. You cannot catch the light in motion towards the surface the light is being aimed onto, and because light travels so fast, that is why you cannot see the light between the flashlight and the light on a surface.
Why are hoods of car ussually made of light materials?
Because they are to be lifted by hand to expose the engine.
Why does a hurricane push over a wall and a light breeze cannot?
Hey!!!! Ummm this might not be the best answer but, A Hurricane, Cyclone or Typhoon (they are all the same thing, just different names) are a very very powerful and strong storm. Where as a light breeze is not... A Hurricane could lift you of your feet while a light breeze cannot. As i said not the best answer but i ! =]
What is light but can not be lifted?
If the exact riddle is i am as light as a feather. but not a 1000 men could lift me or walk through me without harming me. what am i? if that is the question... the answer is a bubble.
What is the heviest weight a kid has lifted?
The most weight ever lifted by a kid younger than 5 is 30 pounds. This child was a very strong kid.
Is the diamond source of light?
No. Diamonds reflect and refract light. Without a light source, a diamond cannot be seen.No, a diamond is not a source of light. A cut diamond appears to sparkle because it is very good at scattering light that strikes it.
What is the relationship between diffraction and the wavelength of light?
the wavelength is very small,so light wave cannot bend very much by diffraction unless it passes through a narrow opening.light waves cannot diffract very much around big obstacles such as buildings.but light waves can always dffract a small amount
