Anywhere there’s been construction, you’re going to find loose nails, bolts, screws, and similar metal fragments. When there’s only a couple of pieces you have to worry about, and you know exactly where they are, you can often get away with sweeping them up like ordinary debris. But if you need to be certain that …
Testing heat can be dangerous. It can also be one of the best ways for students to gain insight into the thermal processes and properties of the world around them. And naturally, laboratories often need to measure the thermal properties of a substance. Whether for routine testing, educational interests, or for scientific pursuits, a good …
Suppose you’re on a worksite at night. You’re around people with slowed reaction times, and you’re dealing with reduced visibility. Not having the right lights can make you waste a lot of time, and it can even put you in danger. But hauling around lights? Without the right pair, that can feel like more trouble …
Hydrogen sulfide (H2S) is a colorless gas. In spite of being essentially invisible to the naked eye, H2S is easily recognizable because it smells like rotten eggs. Lower levels of exposure usually only create minor health problems, like shortness of breath, sore throat, anxiety, or a cough. However, greater levels of exposure can lead to …
Nobody likes the dentist. Sure, regular checkups are essential to our oral health. It’s hard to argue this point. But there is nothing enticing about spending 30 minutes being poked, prodded, and lectured about the importance of flossing. In many cases, dental procedures can be downright frightening. There are very few things more unnerving than …