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Is ‘blue blood’ ever really blue?
Body & mind | Science & nature

Is ‘blue blood’ ever really blue?

Is blood ever blue? That is, is there ever really such a thing as blue blood – outside the science-fiction world, anyway?

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Can you grow your own penicillin?
Body & mind | Science & nature

Can you grow your own penicillin?

Is it possible to grow your own penicillin at home? Not just any mold, but actually make mold with medicinal benefits. Solid gold mold Penicillin was discovered rather accidentally by Alexander Fleming in 1928, when he noticed that mold growing in a petri dish had killed all the staph bacteria around it. Since then, penicillin has gone…

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What is freezer burn?
Food & drink

What is freezer burn?

You put some turkey in the freezer a couple months ago, and now there are dry spots on the meat. So what is freezer burn? Find out how it happens here.

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Why is yawning contagious?
Body & mind

Why is yawning contagious?

It’s common to see someone yawn — even on TV — and yawn in response. But how does that happen, and why is yawning contagious?

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Is it true that no two snowflakes are alike?
Science & nature

Is it true that no two snowflakes are alike?

Despite manmade paper snowflakes looking the same every year, scientists say the old saying is true: no two snowflakes are alike – if they’re large enough, that is. Find out more and see examples here!

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Can pet birds make you sick?
Animals & pets | Body & mind

Can pet birds make you sick?

Bird owners should know that although their pet birds might be highly intelligent and clean companions, they may carry germs that can make you sick. Here’s a look.

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How can you remove chewing gum from hair?
Everyday life | Miscellaneous

How can you remove chewing gum from hair?

Do you ever feel like your hair (or your child’s hair) is a magnet for sticky bubble gum? Well, don’t worry – there are ways to remove chewing gum from hair, without resorting to an emergency session with a pair of scissors. Here’s what to try.

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How much do animals sleep?
Animals & pets | Body & mind

How much do animals sleep?

How much do animals sleep? From bats to giraffes, here are the typical sleep needs for more than 30 different creatures — including humans.

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What’s the difference between first, second & third-degree burns?
Body & mind | Everyday life | Home & living

What’s the difference between first, second & third-degree burns?

How can you tell the difference between first, second and third-degree burns? Here’s a quick look at the symptoms that may be experienced, and typical treatments when the heat gets close enough to hurt.

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How big is the HOLLYWOOD sign?
Entertainment | Travel

How big is the HOLLYWOOD sign?

How big is the HOLLYWOOD sign? It’s Tinseltown’s biggest star – literally – as well as one of the world’s most well-known landmarks. Get its measurements here and find out how high those letters are!

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How do 3D printers work?
Tech

How do 3D printers work?

Not long ago, the idea of printing three-dimensional objects at home might have sounded like a thing out of The Jetsons. So how do 3D printers work, anyway?

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Do reptiles & amphibians make good pets for kids?
Animals & pets

Do reptiles & amphibians make good pets for kids?

Unfortunately, reptiles, amphibians and salmonella often go together – which means you need to be careful, especially around young kids or people with immune system disorders. Here’s why.

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Why do zebras have stripes?
Animals & pets | Science & nature

Why do zebras have stripes?

After evolving from horses some two million years ago, zebras came to have a distinctive pattern. So why do zebras have stripes? A team of scientists has found at least part of the answer.

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Do your tires need to be replaced? How to tell
Cars & trucks

Do your tires need to be replaced? How to tell

How can you find out if your car’s tires need to be replaced or not? Here are some simple ways you can check without making a trip to a mechanic.

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How can you create the most cat-friendly home?
Animals & pets

How can you create the most cat-friendly home?

Sure, our pet cats seem to have it pretty good. But things can look a little different from a cat’s perspective. Here’s how you can create a cat-friendly home for your feline friend.

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How can you grow your own pineapple?
Food & drink | Home & living

How can you grow your own pineapple?

Is it really possible to cultivate your own sweet, juicy, tropical fruit without a trip to the islands. Here’s how to grow your own pineapple!

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What is a keyboard’s CTRL key used for?
Tech

What is a keyboard’s CTRL key used for?

It’s handy on occasion – but have you ever wondered: What is the point of the CTRL key taking up button space on your keyboard?

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Where can I find free fonts?
Tech

Where can I find free fonts?

Whether you’re looking to add a little style to your blog or website, or want to make your presentation stand out from the pack, a new free font may be just what you need. A different typeface can change the entire tone of a graphic or document — and even just experimenting with different font styles…

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Why do fish have mercury in them?
Food & drink | Body & mind | Science & nature

Why do fish have mercury in them?

How come fish have mercury in them – because isn’t seafood supposed to be healthy to eat?

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Are splash pads safe?
Home & living | Entertainment

Are splash pads safe?

It seems like splash pads are becoming super-popular — so are they really as safe as they seem? Here’s a look at the pros and cons.

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  • Is ‘blue blood’ ever really blue?
  • Can you grow your own penicillin?
  • What is freezer burn?
  • Why is yawning contagious?
  • Is it true that no two snowflakes are alike?




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