Why did my Dishcloth Detonate?
Why does sunlight make me sneeze? What causes air turbulence? Why do energy-saving lights take time to warm up? In this week's question and answer show we also investigate why microwaving a dishcloth causes it catch fire, whether mining could change the Earth's orbit and why streetlights shine with an orange glow. In the news, meanwhile, how electrical brain stimulation can make impossible problems tractible, a pint-sized rocket to take spacecraft to the moon and a tornado spotted on the surface of the Sun...
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A small dose of electrical current passed across their heads enabled a group of volunteers to immediately solve a puzzle they had previously judged impossible.
Why do energy saving lightbulbs take so long to get to a bright light and why is this level still dimmer?
Oliver Clark (Aged 12)
Something that's always intrigued me on sunny days when I'm inside the house, I'm fine, I go outside and I start sneezing. Now I don't know anybody else that this happens to, so do you have an explanation please.
Thanks for the show, I find it totally fascinating.
It seems the universe is full of angular momentum. Planets revolve and orbit stars, stars revolve and orbit galactic centres even sub atomic particles spin.
Yet the origin of the universe was the big bang where ever...
Hi Dr Chris,
What a fantastic radio show you put on!
Something I've been wondering for a very long time - I have understood your explanation of why planets revolve around stars - the fact that they have energy and are constantly 'falling' but because they have forward motio...
When an aircraft flies into an area of air turbulence, is this turbulence cause by varying wind speeds and/or crosswinds or a change in air density?
Complex carbon-based molecules, including many that are important for life on Earth, could have formed in the early solar system.
This week has seen NAM2012 - the Royal Astronomical Society's National Astronomy Meeting. Over 1000 delegates got together to discuss the latest in space science, and Ben Valsler reports on some of the highlights...
What was the atmosphere like on the Earth nearly 3 billion years ago? Well that's a pretty tough question to answer, but incredibly, some fossilised raindrops or rather, the patterns that they left behind when they fell 2.7 billion years ago have enabled scientists to reconstru...
With all the millions of tons of material that is mined from the earth and redistributed around the globe is there a chance it could effect or alter the planet's orbit?
Andy from Folkestone
Why are streetlights orange?
With the recent solar activity pummelling the Earths atmosphere, will this dissipate our atmosphere?
A rocket has been developed that could get a spaceprobe to the moon on just 100g of fuel
Sue Nelson explores the missing pieces of the dwarf elephant puzzle and what these extinct animals can tell us about Island evolution...
How drug-resistant bacteria could be combatted using chemical compounds, pesticides causing declines in bumblebee populations, enormous solar tornadoes and tiny robots that mimic living organisms...
Dear Naked Scientists,
Right now, I'm reeeeally hungry, feeling shaky because of my low blood sugar and all. I'm wondering though why my stupid body doesn't realise that there are plenty of nutrients around my waist so I would neither have to feel bad nor to run for a cheese s...