I recently purchased a 650 nm red laser pointer that operates at lt;200 nm. I found it online a a site that sells many different laser pointers and they were all on sale and I was purchased mine for a mere $15. I have yet to receive the laser in the mail and I've been looking online about these things and now I'm worried that I may have purchased something that is simply too unsafe for me to use. So exactly how dangerous is the laser that I purchased? Are laser safety goggles a necessity when using the laser I bought? If you could be as thorough as possible in your answer that would be great.
I live on a dirt road, it becomes nearly impassible during the late winter thaw, as the ground gets so soft. The town grades the road twice a year. I'll never buy another house on a dirt road again
I make molds to sell. I have successfully tried resin in the molds using a WD40 barrier. Remove the resin before it is totally hardened.
Well apart form the obvious reasons, like cars being buried in mud for days, cyclists, bikers and pedestrians being unable to use the roads except in warmest and driest weather, shock absorbers, suspension, tyres would all have much shorter useful lives, much worse visibility due to all the dust, more difficult and expensive to maintain the roads, virtually impossible to fit reflective studs or road markings. Braking distances on dirt roads are much greater than on metalled/surfaced roads and handling is worse so either there'd be millions of extra road deaths every year or speed limits would need to be lowered to around 30 mph. It might work in very dry climates with little traffic, but for everywhere else it would be horrifically dangerous.
In addition dirt roads get a washboard effect. That makes them really bumpy t2.unr.edu/StreetWise/streetw
