15 scientific facts that will blow your mind - my facts hub

Inspire your friends with these amazing facts about the world around us.

1. In children have around 98 bones more than adults.

In babies have about 300 bones at birth, many of them have cartilage. This added flexibility allows them to pass through the congenital canal and also allows for rapid development.With age, many bones fuse, leaving 206 bones that become the average adult skeleton.

2. During the heat, the Eiffel Tower can be up to 15 cm tall.

When a substance is heated, its particles become larger and take up larger quantities - known as thermal expansion.On the contrary, it can be reconsidered due to temperature drop.For example, mercury levels within a thermometer rise and fall when the volume of mercury changes with ambient temperature.This effect is most dramatic in gases, but also in liquid and solid materials, such as iron. For this reason, large structures such as bridges are constructed with extension joints that allow them to spread and contract without harming them.

3. 20% of the Earth's oxygen is produced by the Amazon rain.

Our environment is made up of about 78% to nitrogen and 21% oxygen, with various other gases in small quantities. Many organisms on Earth require oxygen to survive, and as they inhale, they convert to carbon dioxide. Thankfully, plants have permanently filled our planet's oxygen levels through light synthesis. During this process, carbon dioxide and water are converted into energy, which releases oxygen as a product. Covering 5.5 million square kilometers (2.1 million square miles), the Amazon rain forest is a significant proportion of Earth's oxygen, simultaneously absorbing large amounts of carbon dioxide.

4. Some metals are so actionable that they burst in contact with water.

There are some metals, including potassium, sodium, lithium, rubidium, and cesium - which are so reactive that they immediately oxidize (or stain) when exposed to air. They can also explode when they fall into the water! All the elements try to be chemically stable - in other words, to have a full outer electron shell. To achieve this, metals are shedding electrons. Alkali metals have only one electron on the outer shell, which makes them want to move the unwanted passenger into another element by bonding. As a result they form compounds with other elements so easily that they are not freely present in nature.

5. One teaspoon of neutron star will weigh a 6 billion tons.

Neutron stars are the remnants of a massive star that has passed through fuel shortages. The dying star explodes into a supernova while gravity causes its core to fall on itself, causing an extremely dense neutron star. Astronomers keep in mind the large number of stars or galaxies in solar magnitude, which equals one solar number (ie 2 x 1030 kg / 4.4 x 1030 lbs). Typical neutron stars contain a volume of three solar magnitudes, bounded in a circle with a radius of about ten kilometers (6.2 miles) - resulting in some dense matter in the known universe.

6. The hawaii fluctuates about 7.5 cm annually to Alaska.

The ground layer is divided into large pieces called tectonic plates. These plates are in constant motion, running downstream in the upper part of the earth. Before cooling and sinking, hot, dense rock rises, giving rise to circular connection currents that act like giant conveyor belts, slowly moving tectonic plates over them. Hawaii sits in the middle of the Pacific Plateau, slowly heading northwest toward Alaska toward the North American Plate. The speed of the plates is compared to the speed at which our nails grow.

7. The chalk is made up of trillion microscope plankton fossils.

A small-sealed algae called coccolithophores has lived in Earth's oceans for 200 million years. Unlike any other marine plant, they surround themselves with calcite minuscule plates. Just over 100 million years ago, conditions were fine for coccolithophores to accumulate in a white potato coating with a thick layer of coating. When sediment was built upward, pressure pressed the rock to form Coccoliths, and chalk deposits such as white rocks of the Dover. Coccolithophores are one of the many prehistoric species that have ever lived in the form of fossils, but how do we know how old they are? Over time, the rocks form in horizontal layers, with older rocks at the bottom and smaller rocks near the top. By studying the type of rock in which the fossil is found, archaeologists can estimate its age. Carbon dating estimates the age of a fossil, based on the elimination rate of radioactive elements such as carbon-14.

8. It will be very hot for 2.3 billion years of life live on earth.

In the coming hundreds of millions of years, the sun will gradually become brighter and warmer. In just 2 billion years, the temperature will be so high that it will vaporize our oceans, making life on Earth impossible. Our planet will become a vast desert like Mars today. As it spreads into a red cedar over the next few billion years, scientists have predicted that the sun will eventually wrap the Earth in its entirety, combining the final fate for our planet.

9. Polar bears are almost unrecognizable by infrared cameras.

Thermal cameras detect the heat lost on a subject as infrared, but polar bears are heat protection experts. The bears stay warm due to the thick layer of blubber under the skin. Add a thick coat of fur to it and they will be able to withstand the cold days of the Arctic.

10. Lighting from sun to earth takes 8 minutes, 19 seconds.

In space, light travels 300,000 kilometers (186,000 miles) in seconds. Even at this weird speed, it takes a long time to cover 150 million odd kilometers (93 million miles) between us and the sun. And eight minutes is still less than the five and a half hours it takes for sunlight to reach Pluto.

11. If you remove all the empty space in our atoms, the human race can fit into the volume of a sugar cube.

The atoms that make up the world around us seem solid, but in fact there are more than 99.99999 percent of the spaces. An atom is a small, dense center surrounded by a cloud of electrons, spread over a relatively wide area. This is because, in addition to being particles, electrons act like waves. Electrons can only exist if the grip and trough of these waves are properly joined. And instead of being present at a point, the location of each electron is spread over a range of probabilities - an orbit. In this way they occupy a very large space.

12. The stomach acid is strong enough that it can dissolve stainless steel.

Your stomach digests food with a high pH of hydrochloric acid, with a pH of 2 to 3. This acid also attacks the lining of your stomach, which protects itself by secreting alkali bicarbonate solution. The lining still needs to be replaced permanently, and it completely renews itself every four days.

13. Earth is a huge magnet.

The inner core of the earth is a sphere of solid iron, which contains solid iron. Variations in temperature and density create currents in the iron, resulting in electric currents. Coupled with the earth's spin, these currents combine to form a magnetic field, used by compass needles worldwide.

14. Venus is the only planet rotating clockwise.

Our system started out as a rotating cloud of solar dust and gas that eventually fell into a rotating disk with the sun at its center. Due to this common origin, all the planets orbit around the sun in one direction and almost the same plane. They all rotate in one direction (if observed "above") - except Uranus and Venice. Uranus revolves around it, while Venus rotates in the opposite direction. The most likely cause of these planetary oddballs is the large asteroid that knocked them out in the distant past.

15. A fleet can be faster than a space shuttle.

A jumping fleet reaches a height of eight centimeters (three inches) high in one millisecond. Acceleration changes the speed of an object over time, which is often measured in 'gs', allowing acceleration due to gravity (9.8 m / 32.2 ft per square second) in a g ground. Is. The fleece experience is 100G, while the space shuttle is at about 5G. The secret of flea is a long rubber-like protein that allows it to store and release energy like spring.