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Wednesday, September 23, 2015

Energy

MHI 101 Energy
Units:

JOULE (J) is a commonly used unit of energy.  The BTU is also an unit of energy.
    Another typical unit is KWhr (Kilo-Watt-Hour).
1000J = 1kJ (KiloJoule) = 0.9485 BTU=0.0002778 kWhr

The Watt (W) is a unit for power i.e. the energy used (or supplied) per unit time. 
1 J/s (Joule per second) = 1 W (Watt)
Power is sometimes expressed in other units like BTU/hr or Horsepower (HP)
Power-Units Conversion 1kW (KiloWatt) = 3414 BTU/hr 
0.746kW= 1HP

Tuesday, August 25, 2015

Empirical laws

Ohm's Law

THEORETICAL PHYSICS

WHY THEORETICAL PHYSICS?

Foundational theoretical physics is a cornerstone of modern quantitative science, on which so much else rests. It is perhaps the highest-impact, lowest-cost area of basic research. The field advances our fundamental understanding of the universe, with its powerful ideas seeding the technologies of tomorrow. Solar cells, computers, wireless technologies, diagnostic imaging – they are all rooted in breakthroughs made by theoretical physicists.

Re: https://www.perimeterinstitute.ca/about/about-perimeter