Why Does It Happen?

The blue hue of the sky is the first thing you see when you gaze out into a clear day. People have been asking the question "why is the sky blue?" since the beginning of humankind. Although this question is not the most advanced scientific question of today, it is something interesting to think about. The colours of the spectrum are made up of white light. Light travels in straight lines unless it is interrupted. (separated, scattered, reflected, refracted) Different colours of the spectrum have different wavelengths, red, having the least amount of frequency and long wavelengths to violet, high frequency and short wavelengths. Particles in the atmosphere like dirt scatter light upon contact. Blue light has short wavelengths, allowing it to interact with more particles. For example, when a beam of sunlight hits a dirt particle in the air, blue light separates from white and will scatter around the atmosphere. Why isn't the sky violet? Violet has a frequency ev...

If you own a dog, or not, chances are that you've heard that you shouldn't feed your dog chocolate because it's poisonous to them. Chocolate has the potential to kill a dog! How could chocolate, a harmless treat, be able to kill a dog? How much chocolate is considered deadly? What should you do if your dog unknowingly consumes chocolate? Chocolate contains a chemical compound called theobromine. Theobromine is originally found in cocoa beans. Unlike humans, dogs take a much longer time to metabolize chocolate, allowing it to build up toxic levels. Theobromine stays in a dog's bloodstream for up to 20 hours. Small amounts of chocolate lead to vomiting. When a dog has eaten a large amount of chocolate, it interferes with the body's normal functions. The overdose will lead to hyperactivity, this includes abnormal heartbeat, muscle tremors, internal bleeding and seizures. 100-200 mg of the chemical per kg of body weight is enough to poison a dog. Your dog should never...