There are many facts in this world that school students do not yet know if only learn from books according to their curriculum. Sometimes information-information like that actually exists, but quite hidden and not discussed deeply. So when viewed again, quite surprising. Here are 5 simple science facts that can surprise you even a child who is still in school!
1. Quandary in Outer Space
Over the years, many Hollywood science fiction films have convinced us that getting out of a spaceship without a special shirt will render our bodies and "explode." But the reality is not like that. You may indeed feel uncomfortable with the sudden expansion of air in your body, but that does not mean you will explode into several parts. It is true that the fluid will rumble inside the airtight chamber, but the circulatory system in our body will keep our blood under pressure. Outer space is extreme cold, but that does not mean you will lose body heat very quickly. The truth is that you get killed in outer space due to the body's reaction just because of lack of oxygen.
2. Babies Have More Bone Amounts
Not many people know about this fact. Baby size is smaller than us, but all you need to know is that babies are born with 300 bones more than us, the bones are limited to cartilage in between. This will make the baby more easily born because the bones are more flexible. These extra bones make the baby grow up at incredible speeds. As it grows, the bones merge together, so only 206 of them form adult human skeletons.
3. Eiffel Tower Can Be 15 Cm Higher in Summer
Located in one of the most romantic city in the world, the Eiffel Tower is a French symbol and one of the most iconic man-made structures in the world. The tower is also the most visited monument in the world. But did you know that this tower can grow 15 cm tall in the pana season? Yes, this phenomenon is real and can be explained scientifically. When the metal is heated, the particles will become larger and move. This situation is called thermal expansion. Similarly, as the temperature decreases, the particles will return to their original state. This is the reason why large structures such as bridges or Eiffel towers can expand and shrink back due to temperature changes.
4. Infrared Cameras Can Barely Detect Polar Bears
The polar bear is one of the list of animals on the endangered list on earth. These large mammals begin to disappear from their natural habitat due to conflict with humans. Polar bears have the ability to regulate body heat and make it not detected by thermal cameras (temperature capture camera). These mammals can remain warm because of the thick layers of fat that coats under the skin and thick fur. Polar bears can survive even in the coldest weather on earth.
5. Stomach Acid in Our Body Can Dissolve Metals
The human body is designed to be complex to solve individual problems. The human body has the ability to perform a process that is unthinkable, such as how our stomach can digest food because its hydrochloric acid is very highly corrosive with a pH level of 2-3. This acid can also attack your gastric border, hence the stomach will protect itself by producing alkaline bicarbornate fluid. The walls and boundaries of the stomach will always change continuously, it will renew itself every 4 days.
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