What are genes?
Genes are units of hereditary information. Genes contain the instructions for the production of proteins, which make up the structure of cells and direct their activities. They are the basic unit of heredity. Genes decide eye color and other traits. Genes also play a role in how high a person’s risk is for certain diseases. [...]
Do any special measures need to be taken if you mount a television over a gas log fireplace?
I would suggest not using the fireplace if you mount your TV above it. It does depend on the type of TV but any electronic device is going to have trouble in extreme heat and cold, new TVs like plasmas and LCDs can have trouble in the cold anyway. The heat from your fireplace may cause [...]
What are two or more of the same molecule chemically combined together are called?
A molecule is the combination of more than one element, while a compound is a combination of more than one of the same element. Compounds are molecules, but not all molecules are compounds. When two molecules are combined together they form a polymer. These long molecules consist of structural units and repeating units. One atom [...]
How do air brakes function on commercial vehicles?
Air brakes use a compressor which is powered by the engine of the vehicle to compress air, which is stored in tanks, and then used to apply the braking system and stop the vehicle. When the driver presses the brake pedal, they are operating a valve which controls the air pressure release into the brake [...]
What do we call the passing of traits from parent to child?
The term used to describe the transfer of traits from parent to child is heredity. Our genes come from our parents so it is only natural to assume that we will be like our parents. A little bit like our mothers, and a little bit like our fathers, there’s probably a bit of you in [...]
What is Inertia?
Inertia. Newton’s first law of motion states: An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force. The energy required to move an object will continually move that object until [...]
What is the balancing point on an athletes body called?
Even though we all have them, not just athletes, the answer to your question is ‘the center of gravity’. The lower your center of gravity is the better athlete you are most likely to be, that much is true. Take a running back in football for example. They are rarely the tallest member of the [...]
What is the force behind hot air balloons?
Hot air balloons still manage to be fun even though they are probably the slowest mode of transportation. Who can resist getting in a little tiny basket and letting a giant balloon pull you up to the sky, of which you have little control other than up and down. I suppose your question will have [...]
What force is used by Bungee Jumpers?
There are a couple forces that come into play for Bungee Jumpers, so I’ll have to answer this question in parts. The first force is the force of gravity. Gravity will cause the jumper to fall at a consistent rate from the jumping platform. Gravity is the most obvious force involved. There is an opposing force due [...]
Explain why objects with different masses fall at the same rate?
This question has an extensive answer, and one I might add that is not completely agreed upon. Gravity is one of those things that we just do not have a full understanding of yet. The common example of a bowling ball dropping at the same rate as a feather would not work if you just [...]
