In an experiment, a control is used to establish a baseline to compare the results of the main experiment to. Having a control group rules out any environmental variables, such as temperature and... In an experiment, a control is used to establish a baseline to compare the results of the main experiment to. Having a control group rules out any environmental variables, such as temperature and...
Knives, including small pocket knives, are only allowed in checked bags. Only plastic and round-tip butter knives are allowed as carry-on blades. Most bladed items are allowed in checked baggage, including scissors, razors, swords, axes, box cutters and blade tools, if they are properly wrapped or sheathed.
Electric razors and trimmers are permitted in your carry-on luggage. The TSA does not deem this sort of item to be a risk, so you don't need to worry about packing an electric razor in your checked luggage.f you plan on traveling with your shaving kit in your carry-on bag, inspect its contents to ensure your razor meets the TSA's regulations. If you have a safety razor or any type of blade that is prohibited, wrap it securely and place it in your checked luggage.