they are not invented yet.
pencils dont work use pens
Laser stands for Light Amplification by Stimulated Emission of Radiation
Mechanical pencils themselves do not need any energy in the forms of battery or electricity. However, mechanical pencils do need human energy to work. We need to add lead and push lead out; they do not do this on their own.
what is principle work of filter when white light incident on it and laser incident too
A laser circular saw does not use the laser to cut. The saw has a traditional circular saw blade. The laser is used to help the user guide the saw to the correct place where the cut is desired.
Subtract.
No, 0.5 mm lead won't work with 0.7 mm pencils.
usually, no. in America #2 pencils are often required
pencils dont work use pens
Pencils work when the graphite core of the pencil is rubber off onto the paper and crayons are just the wax rubbing off onto the paper.
Laser treatment for cataracts involves using a femtosecond laser, an ultra-fast and precise laser technology.
If you are asking about the Laser Shield - License Plate Laser Deflector. The answer is a big NO! Totally worthless.
I belive one type is an argon laser.
Yes, it will.
help write, drafting, work
Laser stands for Light Amplification by Stimulated Emission of Radiation
No it won't. Laser pointer simply emit a laser beam whereas laser tag systems use other methods to register tags. The laser in laser tag is for effect. The actual laser doesn't tag the pack.