why is it hazardous to use soda-acid fire extinguisher in an electrical fire?
Firstly, there are a lot of misconceptions about cycling. Many people believe cycling on the road is unsafe, yet it is much safer than riding (or walking) on the sidewalk, and twice as safe as car travel! A lot of things about cycling are unintuitive - what seems safe often isn't, while what seems dangerous is often safer. To avoid getting hit Cycle in the roadway, 3 or 4ft from the curb, in the rightmost lane that serves your destination, or if the road is too narrow for cars to pass safely within the lane, close to the center of that lane. Wear a reflective yellow vest, strong lights at night, and reflective tape on the bike where it can most easily be seen. Ride at a position in the road that will increase your visibility. Be seen, be predictable, ride as you would drive a car, signal your intentions, and you'll be safe. Never ride against traffic, never ride on the sidewalk. Try to avoid bicycle paths or bike lanes, which can be more dangerous than the unmarked road. Wearing a helmet won't prevent you from being hit (unless it's a bright colour or has reflective material, or is equipped with a mirror), but if you are hit, it may prevent or reduce the chances of getting brain damage that can kill you or turn you into a vegetable. You will be honked at by ignorant road users. Ignore them. They don't know you have the same right to the road that they do, but at least their honking means they see you. Finally, if you're nervous, take a confident cycling course. The League of American Bicyclists offers a free course in every state entitled 'Smart Cycling'. Also, learn your state's road rules and look up your local cycling ordinances. With knowledge comes confidence. Remember, cycling is safe, but like everything else, it contains a particle of risk. Do what I've suggested, and what others here have suggested, and your particle of risk will get even smaller.
It is going to depend on what type of lab work you're going to do. If this is for school, and there is a risk for someone who wears contacts , it would be listed in your class materials. What COULD happen is that your contacts could be contaminated with some airborne substance. But if that was a risk, your eyes without contacts or with glasses would also be at risk. If you are concerned, ask your lab assistant.
Get a job earn money get a. Car.. Simple
car.. HA! google 'vehicular cycling' take the lane get a helmet mirror wle
Make sure you're visible. Ride in the middle of the lane when you can. Drivers wouldn't dare hit you on purpose (assault with a deadly weapon) if you're in the middle of the lane, but if you're riding on the side of the road and they buzz you and clip you with their mirror, it's technically nobody's fault, they didn't see you. When approaching intersections, take the lane, and whether you have a stop or not, wave your entire arm at any approaching cars so they know you're there. Drivers at stop signs are looking for other cars, not smaller bikes. I know waving has gotten drivers' attention for me more than once. Assert your rights as a cyclist on the road. Faster cars have the responsibility to pass slower-moving vehicles (you) when it's clear and safe. They're not allowed to bully you onto the side of the road. So don't move to the side of the road if you don't want to.
