Throughout history there have been a lot of myths that have been taken as fact. For example the fact the earth is round - pre Christopher Columbus most of the modern world thought the earth was flat. As hard as it may seem, today there are still myths that many people believe to be fact. Here are the top 5 myths in science today.
- Zero Gravity - Contrary to what you might think no where in the universe is there zero gravity. There are gravitational forces at work everywhere. Although in some places the force is very slight so things can appear to be weightless but even there gravity still has some effect on things.
- Humans only use 5% of their brains - God things this one isn't true! For the last century the media has push this little untruth around. In fact MRI imaging clearly shows humans use most of their cerebral cortex, even while catching some sleep. So just think next time you play that cheesy puzzle you got for a corporate gift you could be exercising a large percent of your brain.
- Lighting never strikes the same place twice - Logic can clear this one up for us but we can also look at some examples that can't be refuted. One such example is the Empire State Building, it gets struck by lighting about 25 times per year! Next time you're under your lucky personalized umbrella in a thunderstorm try to minimize your risk but getting inside or to safe ground quickly.
- Yawning is "contagious" - Wow, if this was true we would all be yawing all the time. Think about it, if I yawned then you would yawn and then I would yawn because you are yawing. What a mess that would be!
- Water drains backwards in the Southern Hemisphere - This is one of those kids' fables we are fascinated with. Water does not actually flow in the opposite directions in different hemispheres. For that too happen the earth's rotation would have to be so strong that it would affect water flow. The earth's rotation is not that strong. This can be show by changing the structure of a sink or toilet and you'll see it can be made to swirl both ways. You can also try this test at home using your favorite custom drinkware. When pouring water into the cup see if it will swirl clockwise and then try if you can get it to go counterclockwise.
Well I hope that clears up a good bit of false information. There are many more myths out there to be uncovered. And I'm sure some of you may have even been taught these myths as fact in school. So now that you know the facts it's up to you to spread the truth.