1 Place the cotton balls in areas where mice are likely to enter your house, by doorways or heat vents, etc. 2  Another helpful deterrent is to grow peppermint plants near the entryways. 3  You can use the mint in cooking as well as it serving a deterrent purpose.
Nov 12, 2015. 20 kilometers (12 miles) for a 1 milliwatt beam. Laser light can travel 20 kilometers (12 miles) per-milliwatt that is contained within the laser.
sunlight varies with season and time of day, solar energy fallson the United States at an average intensity of 200 W/m2. || LASIK eye surgery uses pulses of laser light to shave off tis-sue from the cornea, reshaping it. A typical LASIK laser emits a1. 0-mm-diameter laser beam with a wavelength of 193 nm. Each laser pulse lasts 15 ns and contains 1. 0 mJ of light energy.