It is legal to look for work while visiting Canada. Obviously, you should always tell the truth to the officer and state your purposes in the country. You would also need to prove to the immigration officer that the plan is to leave Canada within the maximum allowed time and that you will not work in the country without the proper work permit.
Discarded cigarette butts are a blight on city streets â but now one group of scientists has come up with a way to reuse them to save the environment. Researchers from South Korea believe they can convert cigarette filters into a material that could be used by computers, electrical vehicles and wind turbines to store energy. This material can be used to coat the electrodes of supercapacitors, which are components that can store extremely large amounts of electrical energy.
Capacitors can't really be used to store a lot of energy, but there are many situations in which a capacitor's ability to store energy becomes important. In this lesson we will discuss how much energy a capacitor can store.