Stair lifts can be a godsend for those who require assistance moving up and down the stairs. These lift chairs can make it easy for even powered chairs to move along the track, still giving you the most control possible. When you install a chair lift, the type you use will depend on the type of staircase you have in your home. There are also lifts available to meet your outdoor needs.…
Mass spectrometry is the study of the mass of molecules within any collected sample of gas, liquid, or semi-solid. The latter two substances have to be converted to a gas, but ultimately the mass spectrometer will be able to detect and measure the masses of various molecules in these substances as well. If you want to build a really cool science fair demo project for your students, you can build your own mass spectrometer.…
