What some people call Transitions, a registered trademark, lens are designed and built to react to light levels. Low light the lens stay transparent, when bright light hits the lens the way the lens are made makes the lens change to the apropriate level of dark in a fraction of a second.
It varies. Firstly, it's only present in ferrittic steels like carbon steel, not in most kinds of stainless. Secondly, it depends on the grain size of the steel microstructure, with smaller grains giving a lower transition temperature. The third factor is alloying elements. Silicone and Nickel content tends to raise transition temperature. With modern steels the transition temperature is about -60 degrees celcius. Older steels may have a transition temperature at room temperature, or, more often, at 0 or -10 degrees.
My husband is a heating and air tech and he checks and starts up air conditioners in all kinds of weather.
I dont know and dont care tbh x
actually the answer even a 3rd std. child knows it. just because 2 keep us safe from all weather conditions and animals however ther r now not many animals becauz nowadays v dont live in forests its just the olden tradition 2 keep us safe..........:D:D:D:D:D
dont-know
no he dont wear contact lenses
Sharing contact lenses is very harmful and unhygenic. Please dont do this.
i this yes
they let you see dont they?
no they dont its normal
i dont i just want to get the answer
you dont though you can buy colored contacts
i dont no
weather answer: when its hoter Sick answer: when u feel better but you could still carry the cold.
you dont have to control it they are controlled by pupil and iris
= plastic spectacle Glasses lenses invented 1934 =
you dont