Age-related changes to the eye are the most common cause of eye floaters. The cornea and lens at the front of the eye focus light onto the retina at the back of the eye. As the light passes from the front of the eye to the back, it passes through the vitreous humor, a jelly-like substance inside your eyeball.ecause the floaters are inside the fluid of your eye, they will move as your eyes move. If you try to look right at them, they will dart out of your vision. Eye floaters commonly appear when you stare at a bright, plain surface, such as the sky, a reflective object, or blank paper.
Conventionally, the water temperature at which water boils is considered to be 100 degrees Celsius or 212 degress Fahrenheit. However, these numbers are only valid at sea level. As barometric pressure changes so too does the boiling point of water. For instance, as elevation increases the boiling point lowers.
Every electric kettle I have ever used has heated the water until it is boiling vigorously and then stopped. As @Jolenealaska says, when it's boiling, it's boiling and the temperature that water boils at is 100C at sea level, minus about 1C for every 300m of altitude. â David Richerby Oct 20 '14 at 21:03.