0
- Very light sensitive
- Have more pigment than
cones, so can detect less
light
- Slow response to light
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Why are infrared rays useful in seach and rescure operations?
infrared can be very helpful at nightime rescues, because infrared allows the user to see body jeat, which can not be seen with night vision goggles. infrared is more efficient only because of its ability to pick up body heat.
Do you grow in the day or night?
both! but more in the night!
Why is easier to see faint star in the sky if you look slightly to the side of the star instead of straight at it?
This is because the 'edges' of your eyes, i.e. the parts which are involved in peripheral vision, are highly populated by photoreceptor cells known as 'rods', which have greater visual acuity and are responsible for vision at low light level. This is also why you can see better out of the corner of your eye in darkness. The centre of your eye, or fovea, is more exclusively populated by 'cones', another kind of photoreceptor responsible for vision in higher light levels.
Can auroras only occur at night?
They occur day and night, but are more easily seen during the night.
Why is the sundial most useful in the summer?
because there is more sun light
Why are cone cells more useful for colour vision?
They connect to bipolar cells in a one-to-one fashion.
Are cones in your eyes responsible for peripheral and night vision?
No, those are mostly the functions of the rod cells. Cones are more for vision during the day, when you can see colours :)
How did the night vision goggles in world war 2 LOOK LIKE?
like night vision goggles but more older lol
Do cats have night vision?
Not exactly, some species (boas and pit vipers) have infrared receptors which allow them to see wavelengths we cannot, so in that sense, those species have "night vision" but it would be more accurate to say they have thermal vision. It is also not a very clear image, but a rather blurry one as there are no lenses to focus the IR light onto the receptor cells.
What makes embryonic stem useful for medicine?
They can become more cells than adult stem cells can.
What makes embryonic stem cells useful for medecine?
they can differentiate into more cells than adult stem cells can.
What makes embryoic stem cells useful for medicine?
They can differentiate into more cells than adult stem cells can.
What microscope is more useful to estimate red blood cells?
The microscope that is more useful to estimate red blood cells is an electron microscope because it can magnify to see cells that other microscopes can't see such as the light microscope
How expensive are night vision cameras?
Night vision cameras start at the low end at around $100 for cheap models, and can run into the thousands of dollars for models that have more features.
What are animal eye rods used for?
There are two types of photoreceptors in the retina, cone cells and rod cells. There are 92 million rod cells in a retina. Rod cells function in less intense light and are important for peripheral vision and night vision.
Why are embryonic stem cells useful for medicine?
they are pluripotent|APEX|They can become more cells than adult stem cells can.
What makes embryonic stem cell useful for medication?
they can differentiate into more cells that adult stem cells can
