In science, power is the rate at which work is done or energy is transferred,

power, in science and engineering, time rate of doing work or delivering energy, expressible as the amount of work done W, or energy transferred, divided by the time interval t—or W/t.

The term refers to a new period of history that features a dramatic change in the global political landscape and balance of power. It is often used to describe efforts toward global cooperation and governance to solve international problems. 

Our minds are the most powerful tool that we can harness for all levels of success in life. Our thoughts shape who we are and who we will become, as well as influencing our physical well-being and our emotional state. The power of the mind is a tool we are still discovering and just beginning to unleash

Science is the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.