Improve Your Communication Skills
Fact or Fable? Most body heat is lost through the head
Many people believe that you should keep your head covered during cold weather, as most body heat is lost through the head. It’s certainly true that any part of your body that’s exposed to cooler air will lose warmth; heat always moves from something warm to something cooler (that’s called the second law of thermodynamics). And our heads and faces are more sensitive to changes in temperature than other parts of the body.
Have you ever wondered…about your teeth?
Have you ever had a tooth pulled out by a dentist? If you did, you may have noticed something odd. The roots were probably still attached to the tooth, unlike when a tooth falls out normally. What happens to the root of a tooth, how do teeth grow and why is it important that you take care of them? Samantha Gouldson investigates!
Talking in Text
Text speak is very confusing for a lot of people, but it is one area in which children and teenagers are far more advanced than adults. Mobile phones and the internet are recent inventions.
Imagine what it was like for your parents as children. If your parents are 30 years old, the internet did not exist for them! Mobile phones were only invented in 1973 but did not become common for 15 or 20 years. The first ones cost thousands of pounds and were the size of house bricks!
Picture Perfect – How to Take Great Photos
Instagram, flickr, tumblr, facebook, twitter. You can’t help but feel bombarded with different photo uploading websites.
We’re being showered with photos: fancy food delicately arranged on a plate; inanely grinning friends tagged in a variety of locations; sunsets from all over the world.
What makes a photo a good photo? This guide will help turn your everyday snaps into something a bit more special.
Winter Wonderings – Are Snowflakes Really All Different?
It’s a common belief that no two snowflakes are the same, and in a way this is true. No snowflake can ever be completely identical to another, because when you get down to the molecular level they will have slightly different kinds of water molecules, different electrons and different traces of other materials such as specks of dust.
However, if we’re talking only about the appearance and shape of a snowflake, then yes it is possible that some will have duplicates. Snow crystals can vary from fairly simple, hexagonal structures to the more complex and delicate shapes that we commonly think of as snowflakes.
The simple flakes have far fewer molecules than their larger cousins and so it’s entirely possible that you could find two that appeared identical when viewed through a microscope. The more complex structures, however, can have more than a hundred different features and each feature can form in a number of different ways. This makes it highly unlikely that you would ever find two large snowflakes that looked the same – but you could have fun trying!
For a more detailed explanation of the science behind the forming of snowflakes, check out this video