I’ve recently re-discovered the joy of the Slinky – one of the simplest of all children’s toys and yet, so beguiling, as it seems to defy the laws of physics by hinting at some sort of perpetual motion. So how on earth does this work?
It took over 300 years of experimentation and refinement to arrive at the figure for the speed of light which we use as standard today. That being the case, the method proposed in this article for determining that speed yourself might seem more than a little surprising.
The renowned soprano Dame Nellie Melba is reputed to have performed this trick and in 1971 the audio-tape maker Memorex based a very successful advertising campaign around Ella Fitzgerald shattering glass both when singing live and when recorded on its tape cassettes (a claim the company still stands by today).
Chimpanzees share about 99% of our DNA, making them our closest living relatives, so the questions might be better re-phrased as “Can chimps speak?”
Magnetism is a manifestation of some very fundamental physics, ultimately linked to the orbital motion and spin of the electrons in atoms.
Toy magnets sometimes come with warnings not to drop them or heat them up, lest they lose their magnetic power. But is that true can magnetic substances really lose their magnetism ?.
It seems simple enough – you flip a switch, and in the blink of an eye the room has gone completely dark. But where exactly did all of the light go ? What actually makes the room dark?
According to the big bang theory, the universe started off as an infinitely small point and expanded incredibly quickly in a process called inflation. But why is the Universe still expanding ?
Water is one of the strangest chemicals in the universe, and many of its strangest features turn out to be essential for life as we know it, particularly the almost unique property of water related to freezing. So why does it float when it becomes a solid?
A team of German scientists examining material from the seabed beneath the Pacific Ocean believe that they may have uncovered explosive evidence of an event that altered the evolution of humankind.
It was Aristotle who defined the five senses: touch, taste, smell, sight and hearing. But in the last several decades, the definitions of these senses have begun to tangle. Some studies even suggest that 1 in 5 people can ‘hear’ a flash of light.
E=MC2 must be one of the most well known equations. But what does it mean? What is E amd why is it equal to MC2 ?
Bats are well known for employing sonar to find their way as they fly in the depths of darkened caves. What you may not know is that this highly evolved location finding mechanism, also called Echolocation or sometimes ‘bio sonar’, is actually used by several kinds of animals
There’s one popular misteaching that seems to pervade : it’s our understanding of ‘the senses’ – and that is that there are only 5 of them. However if you really think about this subject a bit, its pretty obvious and quickly apparent that we have many more ways to sense the world