Ground Source heat pumps promise to supply most if not all the heating required for any new house without drawing ANY energy from the Electricity Grid! What are they? Ground source heat pumps use solar energy naturally stored in soil, bedrock and groundwater as a heat source. They do require electricity to operate, but efficiently produce up to five times as much heat energy for every unit of electricity they use. How does it work?A...
Zero is now so central to the way we think, and to our key technologies, that it’s hard to imagine a time before we had it.
The most accurate time piece today is an Atomic Clock. But how does it work & what’s the theory behind it ?
What would you say if much of the causes of global warming and pollution that the world is currently struggling with could be traced back to one man ?
Microwave ovens are part of everyday life. But how to they work?
Pluralitas non est ponenda sine necessitate;” or “Plurality should not be posited without necessity.” A philosophical proposition that has shaped our world view.
Why is it that we don’t fall through the floor? What’s stopping us ? A stupid question, surely ? … not really when you consider what an atom is made up of.
The story of the miracle drug that we tend to take for granted today … Penicillan.
Ever wondered how a nuclear bomb works? Here we look at the physics behind two types of these horrific devices: The Atom (or Fission) bomb and the Hydrogen (or Fusion) bomb.
Solar cells, or photovoltaic cells, convert energy from sunlight into electricity… but how? What principles lie behind this technology?
What would you say if scientists could show that brain activity to press a button occurred 7 seconds before you consciously made the decision to even do so ?
Is it possible to recreate the language of Stone Age man, spoken between 30,000 and 100,000 years ago? Some linguists believe it is.
How many of us have a foot a foot long ?
What are the origins of some of the measurements we use today.