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Dr Karl's Great Moments in Science

 

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Stuxnet the world's dirtiest digital bomb
Updated: 2011-11-01 03:39:00
Description: Computer espionage has taken on a newer and more sinister meaning this century. Dr Karl looks closely at the dirty work done by a computer worm, Stuxnet, as it attacked a uranium processing plant in Iran....more...

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Stuxnet opens cracks in Iran nuclear program
Updated: 2011-10-25 22:12:00
Description: A politically motivated cyber-attack was recently successful in penetrating the computer defences of governments. Dr Karl pursues the path taken by the computer worm, Stuxnet, as it attacks a uranium processing plant in Iran....more...

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Stuxnet unleashes malware warfare
Updated: 2011-10-17 23:55:00
Description: In 2010, Iran revealed its nuclear program was attacked by a type of computer virus. Dr Karl peers down the pipe at the murky world of computer viruses, spyware and digital-age intrigue....more...

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Miracle berry's sweet secret
Updated: 2011-10-11 00:16:00
Description: If you could miraculously make bitter food turn sweet, would you do it? Dr Karl reveals the secret to the amazing taste trick of miracle fruit....more...

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Miracle fruit brings a change in taste
Updated: 2011-10-04 01:05:00
Description: A little-known African berry can make sour things taste sweet. Dr Karl sinks his teeth in to a very fruity phenomenon....more...

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Watchful eyes keep you honest
Updated: 2011-09-27 04:01:00
Description: People are generally cooperative, even to those they don't even know. But Dr Karl shows how even the vague perception of being watched can have a marked effect on how we behave....more...

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Cigarette danger outweighs skinny incentive
Updated: 2011-09-20 01:05:00
Description: For many cigarette smokers, their tobacco addiction means they tend to eat less. As Dr Karl explains, scientists have only recently understood why smoking may cause weight loss....more...

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No-cheating diet cures fast-food fix
Updated: 2011-09-13 00:35:00
Description: While fast-food companies use neuroscience to lure you to their doors, it is also handy for breaking the habit. Dr Karl shares some tips to help halt those fast-food cravings....more...

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Fast food 'feast' a trick of the mind
Updated: 2011-09-05 22:43:00
Description: Why do some people keep eating unhealthy food even when they're no longer hungry? Dr Karl reveals the tasty morsels that keep you coming back for more....more...

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Fast food addiction an inconvenient truth
Updated: 2011-08-30 23:28:00
Description: When it comes to hankering for fast food, your brain may have more to say than your stomach. Dr Karl is here to help you resist the temptation....more...

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Hot cuppa physics causes a stir
Updated: 2011-08-23 01:47:00
Description: It's taken world-beating physicists only until recently to figure out what happens when you stir your hot beverage of choice. Dr Karl believes this is one definitely worth trying at home....more...

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More fork means eating less
Updated: 2011-08-16 00:00:00
Description: Recent research has found that to eat less at meal time all you need is to use a bigger fork. Dr Karl tucks in to a tasty connoisseur's conundrum. ...more...

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Why is poo brown?
Updated: 2011-08-09 01:08:00
Description: We eat foods of many different colours, but they always come out the other end in shades of brown and yellow. Dr Karl travels through the human body to find out why....more...

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Ice-cream headache is a real pain
Updated: 2011-08-02 00:20:00
Description: Why do some people get a headache when they eat ice-cream or drink something very cold? Dr Karl explains the painful truth....more...

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Chopping onions need not end in tears
Updated: 2011-07-26 04:25:00
Description: When you cut onions, why do you cry? Dr Karl has the answer....more...

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Crying theories bring tears to your eyes
Updated: 2011-07-19 00:27:00
Description: While it is commonly claimed that a good-ol' cry is good for you, there is actually little scientific evidence to back it up. Dr Karl readies his handkerchief for the truth behind the original tear-jerker....more...

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Tears a sad fact of life
Updated: 2011-07-12 00:00:00
Description: It's a common claim that there's nothing like a good sob to let your emotions out. However, Dr Karl's explanation of why we cry is sure to bring you tears of joy. ...more...

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Antibiotics a gut-wrenching lottery
Updated: 2011-07-05 03:42:00
Description: If you are sick and need to take antibiotics then you roll the dice over what happens to the bacteria in your gut. Dr Karl puts the bacteria that live in your digestive system under the microscope....more...

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Bacteria balance a gutsy battle
Updated: 2011-06-28 01:46:00
Description: A big part of your body mass is in a place you may not know exists. Dr Karl bites in to some juicy facts about the bacteria in your gut....more...

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Madonna popcorn diet all puff
Updated: 2011-06-21 01:49:00
Description: There are many pop diets about, and some are downright dangerous to your health. Dr Karl looks at the good, the bad and the ghastly effects of living entirely on popcorn. ...more...

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Perfect popcorn cracks under pressure
Updated: 2011-06-14 01:37:00
Description: With a shell that can withstand 90 tonnes of pressure per square metre, it takes some serious heat to crack a corn's kernel. Dr Karl probes the pathway to perfect popping....more...

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Antibiotics beef up bacteria burger
Updated: 2011-06-07 00:53:00
Description: The general use of antibiotics in farmed animals may mean we pay a greater public health price. But, as Dr Karl explains, you may be surprised where the resistant bacteria become most dangerous....more...

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Nose for nuance guarantees good taste
Updated: 2011-05-31 00:00:00
Description: Is smell important to how you enjoy your food? Dr Karl knows of at least five sensible reasons why when you taste what you eat you also smell it....more...

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Obesity may be catching
Updated: 2011-05-24 00:00:00
Description: Recent research is revealing that some types of weight gain are caused by an infectious virus. Dr Karl sheds light on a study some may find bittersweet....more...

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Fat-busting bacteria not a hard act to swallow
Updated: 2011-05-17 00:00:00
Description: How much energy you get from the food you eat may be determined by the bacteria in your stomach. Dr Karl chews on some tasty findings to reveal what decides your final body weight....more...

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Microbes may make us fat
Updated: 2011-05-10 04:30:00
Description: We are only now beginning to understand the microbes living in your gut. Dr Karl examines your insides to see how these microbes can affect your weight....more...

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Panda diet bamboozles animal experts
Updated: 2011-05-03 03:57:00
Description: Although having the digestion of a meat-eater, giant pandas survive almost exclusively on a vegetarian diet. Dr Karl sinks his teeth in to one bamboozling diet. ...more...

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Developed digestion proves people more microbe than man
Updated: 2011-04-27 00:00:00
Description: Without microbes in our gut, humans would be thinner, smaller and lacking in energy. Dr Karl delves deep to discover the intricacies of human digestion. ...more...

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Human poo transplant treats gut-wrenching disease
Updated: 2011-04-19 00:00:00
Description: As unusual as it sounds we still have no real idea of what lives in our gut. Dr Karl has a tale of a rather uncommon, and very successful, treatment for a bowel infection....more...

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Asparagus 'science' on the nose
Updated: 2011-04-12 01:34:00
Description: Scientists are still struggling to know exactly what causes smelly asparagus pee. Dr Karl fishes around for the elusive answer to an annoying stink....more...

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Asparagus smell left ancients aghast
Updated: 2011-04-05 04:29:00
Description: Asparagus has been part of people's diet since at least the time of the ancient Greek philosophers. But Dr Karl doesn't quite understand why they didn't seem to have smelly post-asparagus eating pee. ...more...

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Asparagus smell causes real stink
Updated: 2011-03-29 02:07:00
Description: Ever noticed that stench in your wee after eating asparagus? Dr Karl creates a stink about the bad and good aspects of this less-than-appealing smell....more...

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Ancient nuclear waste is a mellow yellow
Updated: 2011-03-22 02:10:00
Description: One of the big problems with using nuclear power is what to do with the waste. Dr Karl reveals that our planet has a history of dealing with spent uranium. (First published 1 March 2007.)...more...

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Amityville authors' haunt a hoax
Updated: 2011-03-15 00:41:00
Description: Tales of demonic manifestations abound in modern culture. Dr Karl raises from the ashes a popular paranormal fabrication....more...

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Amityville truth a shocking horror
Updated: 2011-03-08 00:00:00
Description: Many people enjoy being scared out of their skin at the movies. Dr Karl peeks from behind his hands to reveal the truth behind one of the most famous horror stories of all....more...

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'Golden age' of pirates walks the plank
Updated: 2011-03-01 00:25:00
Description: Despite popular perception, pirates shoving folks overboard is somewhat overstated. Buccaneering myth-buster, Dr Karl, sets out to despatch a well-sailed ship of fools....more...

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Pirate history thrown overboard
Updated: 2011-02-22 05:26:00
Description: Much has been written about pirates of bygone times. So Dr Karl sorts the trash from the treasure for some myth-busting booty. ...more...

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'Hygienic' hand dryer hypothesis blows hot air
Updated: 2011-02-15 01:41:00
Description: Many believe that those warm-air dryers in public toilets are there to improve public health. But Dr Karl sees other motives behind their installation....more...

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