Do laser projectors make noise?

Related posts:

1. Why is nuclear not green? Why is nuclear not green? The construction of a nuclear plant is a long and complex process that obviously releases CO2, as does the demolition of decommissioned nuclear sites. Uranium extraction, transport and processing is obviously not free of greenhouse gas emissions either....
2. How far is nuclear fusion away? How far is nuclear fusion away? This article was originally published in The Oxford Scientist Michaelmas Term 2021 edition, Change. Nuclear fusion is supposedly 'always 30 years away'. It was however first theorised about a hundred years ago....
3. Is there a 4K projector? Is there a 4K projector? Most 4K projectors work with screens as large as 120", while costing only half the price of a similarly priced television. You don't have to watch in the dark. In the past, a projector in a room with any amount of ambient light sometimes delivered...
4. What is the cleanest form of energy? What is the cleanest form of energy? Out of all energy resources, we consider green power (solar, wind, biomass and geothermal) as the cleanest form of energy....
5. How big of a blast is a nuke? How big of a blast is a nuke? Drozdenko said US nukes generally had explosive yields equivalent to about 300 kilotons of TNT, while Russian nukes tended to range from 50 to 100 kilotons to 500 to 800 kilotons, though each country has more powerful nuclear weapons....
6. Who has the biggest TV in the world? Who has the biggest TV in the world? LG has unveiled the world's largest TV – a 325-inch monster screen that will set you back tens of thousands of pounds. Aimed at "super-luxury" homes, the Extreme Home Cinema is one of the largest LED screens ever made....