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.
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
I dont know and dont care tbh x
Advantages:· It embraces various building shapes· It can be assumed to be more or less monolithic· Connection are homogenous with rest of the frame· It is easily used for two way structural systems· It is not necessary to pay for crane on site· Construction can proceed independently of weather conditionsBetter working conditions for the building operativesDisadvantages:· Needs high labour numbers and plant on site· Erection of formwork is time consuming· The quality control is difficult· Once the concrete has been cast it is to difficult to do any modifications· weather can create problems for curing, and for construction itselfErecting and interconnecting them to form the final structure
no he dont wear contact lenses
Sharing contact lenses is very harmful and unhygenic. Please dont do this.
they let you see dont they?
no they dont its normal
i this yes
i dont i just want to get the answer
I really dont know
you dont though you can buy colored contacts
you dont have to control it they are controlled by pupil and iris
i dont no
= plastic spectacle Glasses lenses invented 1934 =
you dont