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How many rods are in the human eye?
There are roughly 120 million rod cells in the human eye. Rod cells are photoreceptor cells in the retina responsible for vision in low light conditions.
What is the name of the rod in the center of the sundial called?
The rod in the center of a sundial is called a gnomon. It is the part of the sundial that casts a shadow, allowing the time to be determined based on the position and length of the shadow it creates.
What is the difference between a greek sundial and a egyptain sundial?
Greek sundials typically featured a gnomon (a vertical stick or rod) that cast a shadow on a flat surface marked with hour lines, and they were often designed to be portable. In contrast, Egyptian sundials were generally more fixed structures, often incorporating a horizontal plate with hour marks and a gnomon that was aligned with the cardinal directions. Additionally, Egyptian sundials were used primarily for agricultural purposes, while Greek sundials were more focused on daily timekeeping and philosophical inquiry.
Why are rod cells more useful for night vision?
Rod cells are more useful for night vision because they are highly sensitive to low levels of light compared to cone cells. Rod cells contain a pigment called rhodopsin that helps them detect even small amounts of light, allowing for better vision in dimly lit environments. Additionally, rod cells are responsible for peripheral vision, which is crucial for detecting movement and objects in the dark.
What are the special cells on the retina that sense black white and shades of grey?
rods or rod cells
Difference between big block Chevy truck rod and passenger car rod?
the big Chevy truck rod is bigger than a passenger car rod.
How many degrees of difference are there between the throw of one connecting rod and the throw of adjacent connecting rod?
80
Difference between rod cell and cone cell?
Rod cells are sensitive to dim light, while cone cells help you see colors.
What is the difference between tie rod and track-rod-end?
Nothing they are the same thing doing the same job It's an American English thing, they have to try to be different
What is the difference between Bob Dylan and Rod Stewar's Forever Young?
The main difference between Bob Dylan and Rod Stewart's Forever Young is the fact that it was written by Bob Dylan, and it is a personal story about his son Jakob. Stewart's version is also more upbeat, and less melancholy sounding.
What is the difference between hot rods and muscle cars?
A muscle car is factory built, and a hot rod, home built.
What is the difference between the charges on a balloon rubbed in your hair and a glass rod rubbed with silk why?
There is a very big difference between the electrical charge of a balloon rubbed in a person's hair and a glass rod rubbed with silk. The charge from the balloon will just make it stick to objects. The charge from the glass rod will emit a very large electrical shock that might knock a person to the ground. This is because the glass rod is a better conductor of electricity than the balloon.
What is the difference between a short rod nut and a short forged nut in regards to flared tubing?
short gas long H2O
What are the difference between a 4.7 engine and a 4.0 engine?
The 4.7L is an overhead cam V8. The 4.0 is a push rod inline 6.
What happens when metal rod moves in magnetic field?
Induced voltage generates in rod.Voltage difference evolve between two ends.
What is the difference between rods and cones?
cone cells help you see colors while rod cells helps you see in dim light
What are the key differences between a 2 piece and 1 piece rod for fishing?
The key difference between a 2-piece and 1-piece fishing rod is the number of sections they are made of. A 2-piece rod can be taken apart into two sections for easier transport and storage, while a 1-piece rod is a single, continuous piece. The 2-piece rod may have a slight decrease in sensitivity and strength compared to a 1-piece rod, but it offers more convenience for travel.
