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Wednesday, 10 March 2010

Man is evolving but not as fast as the London Underground mosquito

Are new species still evolving?

We hear so often about extinction, however is there new life being formed such as mammals, or higher order animals? 0 comments

Tsunami waves get higher the closer they get to land.Why hasn't Australia been badly affected by recent tsunamis?

Thursday, 4 March 2010Article has photo slideshow

2 comments

Sweating is a very efficient way for our bodies to get rid of excess heatWhy is 38C air hot but 38C water not?

Tuesday, 2 February 2010

11 comments

To 80 kilometres and beyond: the United States defines an astronaut as anyone who has travelled to an altitude of 80 kilometres or moreWhere does space begin?

Wednesday, 13 January 2010

14 comments

I'm yawning at you, not with you: Children don't develop empathy until they are between 15 to 24 months oldWhy don't babies yawn back at you?

Monday, 7 December 2009Article has audio

25 comments

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Shades of grey: Sharks can't see colour because they only have one type of cone in their retinasCan sharks detect colour?

Thursday, 26 November 2009 2 comments
Can sharks detect colour? And if so, are you better off wearing particular colours when you go swimming?

Don't try this with your kitchen sink: some stainless steels are magnetic but not all Why isn't stainless steel magnetic?

Thursday, 19 November 2009 12 comments
I work in the marine industry with boating, and we deal with stainless steel 316 and 308 stainless a lot. Why isn't stainless steel magnetic?

Pass the salt: Salt can make pineapple taste sweeter by reducing the bitterness of the fruit Why does adding salt to pineapple make it sweet?

Wednesday, 4 November 2009 13 comments
Why does adding salt to pineapple make it sweet? Someone told me that table salt should not react with the acid in the pineapple.

Caffeine can significantly change the flow of blood, and even the electrical activity, in your brainWhy do you get a headache when you skip your regular cup of coffee?

Monday, 19 October 2009 12 comments
Why do you get a headache and feel tired when you skip your regular cup of coffee?

Tropical cyclone Hamish off the coast of Queensland in March 2009Can humans control the weather?

Thursday, 8 October 2009 18 commentsArticle has audio
Can humans control the weather? For example by creating a device to track down a storm forming and delivering a solution there to avoid a severe storm happening.

Same, same but different: Technetium shares many properties with its transition element neighbours like manganese and rhenium, but is not a naturally-occurring elementWhat's the story with technetium?

Thursday, 24 September 2009 17 comments
How come technetium is a synthetic material right in the centre of all those naturally-occurring substances in the periodic table? Could there be a deposit of naturally-occurring technetium out there somewhere?

Hirsute hunk: Does sexual selection prove hairy men are the epitome of male attractiveness?Why is it beneficial for men to have facial and chest hair?

Tuesday, 8 September 2009 34 comments
From an evolutionary standpoint, why is it beneficial for men to have facial and chest hair?

More powerful telescopes have enabled us to see more of the universe but not necessarily any further What's the most distant galaxy a telescope can detect?

Tuesday, 25 August 2009 37 commentsArticle has photo slideshow
Many years ago we were told that the farthest galaxies detected by the then most powerful telescope were 15 billion light-years away. How far away can we detect galaxies now?

Look, no hands! This headset allows you to control your video game character just by thinking about it How do mind-reading headsets work?

Wednesday, 5 August 2009 3 commentsArticle has audio
I've heard about these headsets that you can use to play video games with, without using your hands at all. How do they work?

The millions of receptors inside a dog's nose are one of the reasons they have such a powerful sense of smellWhy are dogs such top smellers?

Thursday, 2 July 2009 4 commentsArticle has photo slideshow
What makes dogs' noses and their sense of smell so powerful?

About 31 active GPS satellites orbit 20,000 kilometres above the Earth.How does GPS work?

Thursday, 18 June 2009 10 commentsArticle has audioArticle has photo slideshow
I've just bought a new phone that is GPS-enabled and it got me wondering, how does GPS actually work? And how accurate is it?

The ozone hole at its largest in 2005.Why is the ozone hole in the less polluted southern hemisphere?

Wednesday, 3 June 2009 9 comments
If the atmosphere in the northern hemisphere is much more polluted than it is in the southern hemisphere, why is there an ozone hole in the south and not in the north?

Identical twins share identical DNA.Do twins x twins = twins?

Monday, 18 May 2009 13 comments
If identical twins married identical twins, would they have identical babies?

Will hanging out with this fellow make you (or it) sick?How does an animal flu become a human flu?

Wednesday, 6 May 2009 8 commentsArticle has audio
I've been following the swine flu outbreak in the media but I still don't understand how a virus can move between different species. So how do humans get the flu from pigs?

Scientists are trying to find accurate ways to predict earthquakes.Predicting earthquakes: are we there yet?

Thursday, 23 April 2009 5 commentsArticle has audio
I read in the newspaper that someone predicted the 2009 earthquake in Italy. Is this really possible?

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