From the micro world to outer space: Oxygen

•    It was first discovered  in 1774 by Joseph Priestly.

•    Oxygen can bond with nearly all metals. The rusting  of iron can be given as an example of the  activity called oxidization.

•    Fire is lit thanks to oxygen. The reason that there is no fire in space is that oxygen is almost non-existing.

•    21% of air, 88,8% of water and 50% of the Earth's crust is composed of oxygen.

•    The ratio of oxygen in air is at a sensitive balance to meet the needs of all living things.

•    The flawless balance in the atmosphere is protected thanks to living things.

•    All living things, including human beings, produce carbon dioxide, which is poisonous for them, while they use the oxygen they need.

•    Plants do the opposite and turn the poisonous carbon dioxide into oxygen.

•    If all living things produced oxygen like plants, the ratio of oxygen would increase too much and the atmosphere would become a bomb ready to explode.

•    Every 1% rise in the level of oxygen in the atmosphere increases the possibility of igniting  a fire on Earth by 70%.

•    If plants consumed oxygen and released carbon dioxide, like other living things, some time later fresh air would cease  and all living things would die by suffocation.

•    A normal person can only endure a lack of oxygen for approximately four minutes.

•    We need oxygen to accomplish our bodily functions.

•    Every time we breathe, we fill our lungs with oxygen and it is carried to our cells through  the blood.

•    The carried oxygen is used to produce energy inside the 1 billion factories forming our body, meaning our cells.

Venus
 

•    It is the second closest planet to the Sun in our solar system.

•    Because it resembles the Earth in terms of its size, location and volume, it is referred to  as the Earth’s twin by scientists.

•    It turns in the opposite of the Earth’s direction around the Sun.

•    For Venus, one day equals 243 Earth days; this shows that Venus rotates on its axis much slower than the Earth.

•    Venus’ orbit  around the Sun lasts 225 days.

•    The planet’s orbit  around itself takes longer than its orbit  around the Sun. This means that its day is longer than a year.

•    Its atmosphere is filled with clouds loaded with sulfuric acid. Its air is so poisonous that no being can breathe there.

•    Its surface is covered with mountains, canyons and valleys. However there is not even a single drop of water on the surface.

•    The reason that there is no water is that the temperature on the planet’s surface is too high for any being to survive; the planet’s temperature is 470˚Celsius. Venus, which has volcanic explosions on its surface, is the hottest planet in the solar system.

•    The reason for  this high temperature is  that the planet is shrouded in  thick clouds, imprisoning the heat coming from the sun.

•    It is the brightest and biggest star when seen from the Earth.

•    What gives it this  brightness is that the clouds enveloping  the planet reflect  sunlight very strongly.

•    The atmospheric pressure on Venus’ surface is 90 times that of the Earth.

•    It has been observed that sand dunes and sand structures on its surface are formed through winds and storms.

•    The craters on the surface are at least 1.5 to 2 kilometers on average because any small meteorites burn up and are  destroyed in the atmosphere before even reaching to the surface.

•    Venus is created with qualities totally unsuitable  for any life at all.