Tea contains a lot of chemicals called polyphenols that are responsible for its taste and aroma. When stored inside flasks, the high temperature causes these chemicals to get oxidized and form tannic acid which results in changing of the above mentioned properties of tea.
Have you noticed that the taste of tea changes after been put in a flask for a few hours? Why does this happen?
Although Viruses are considered as non-living beings, recent discoveries have shown that viruses communicate with each other using complex chemical methods and take group decisions when infecting live cells. These methods are currently being studied by scientists in order learn from them and develop more sensitive and complex communication gear.
Have you tried suddenly throwing out your hands while spinning in a revolving chair? Then you would have experienced a rapid drop of the spinning speed. This happens as the spinning speed relies on the distribution of mass around the spinning axis. When you throw your hands out, your body spreads further away from the spinning axis, causing the speed to go down.
Do you know that Cockroaches can survive decapitation for several weeks until they finally die of starvation? When their heads are cut off, their necks simply seal off by clotting the blood. So as you can see, every despised living being holds a bit of fascination too.
When removing a Banana Plant to plant in another place, its roots usually get torn off from the plant. As a result, after planting the plant, it is not able to absorb much water from the soil until its roots are fully grown. Therefore, its leaves are cut off to reduce the surface area from which transpiration occurs, which results in preventing a considerable amount of water, so the plant would keep from going wilt.
Farmers usually cut all the leaves of a Banana plant before planting it. Why do they do so?
Although our brains are responsible for only 2% of our body weight, it has the highest oxygen usage compared to other organs, which is around 20% of the body’s oxygen intake.
Mercury, the closest planet to the Sun, has ice on its surface despite its high temperature. These ice were observed in permanently shadowed craters that never receive any sunlight, situated at the North Pole of the planet. It is believed that these Ice were delivered to mercury by comets.
Can you recall the scratchy, rough feeling you get in your month after eating Pineapples? This happens because Pineapples contain Bromelain, a mixture of protein digesting enzymes. Therefore when it comes in contact with sensitive skin, it breaks down proteins on the surface, causing discomfort and inflammation.
Hard water contains Calcium and Magnesium ions. When washing with soap, the active complex in soap loses its Sodium ion, replacing that with a Calcium or Magnesium ion. This results in making an insoluble compound. Most of the soap goes into making this compound so an excessive amount of soap is needed to wash the cloths.
It requires an excessive amount of soap when washing clothes with hard water. Explain the reason for this.
Most vivid dreams occur during REM stage of our sleep cycle. REM stands for Rapid Eye Movement. These eye movements are caused when we, out of habit, dart our eyes to “see” the objects in our dreams.
Do you know what would happen to you if you accidentally swallow one of those silica gel packets that say “Do not eat.”? Well, it will do what it does best; adsorbing water. This will cause you to have dry eyes, dry throat, dry nose and discomfort in your stomach. Silica Gel can adsorb up to 40 times water as its weight.
Have you ever wondered why your cat’s eyes have pupils of a vertical shape? This pupil shape provides them the ability to gauge distance for a prey-snatching leap. Pupils this of sort are common among nocturnal predators that ambush their prey.
The desert atmosphere is very poor of moisture (to trap the heat without letting the temperature rise), and the sky is typically cloudless. Therefore, during the day the radiation from the sun directly heats up the desert surface. During the night, all of that heat is transferred back to the space and the temperatures are rapidly gone down due to the lack of the moisture in the air to trap the heat.
Most deserts are extremely hot during the day and extremely cold (below 0°C) during the night. What causes this intense temperature drop?
Did you know that Hawaii Islands were created by underwater volcanic eruptions that happened millions of years ago? The magma beneath the crust of the earth rises up until it erupts on to the seafloor, forming underwater volcanoes. The lava that comes out of them hardens in contact with seawater, and packs enough hardened lava to pop above the surface of the sea, forming large islands over time.
Do you remember there was a time the arsenic content in rice was majorly broadcasted through media? If you are person who is still concerned about this matter, this news will come in handy. Researchers have found that cooking rice by repeatedly washing through with fresh hot water can remove much of the grain’s stored arsenic.
Have you heard of a plant called Hydrangea of which the flowers change colours dramatically with the pH level of the soil they have grown in? In acidic soil (pH below 6) flowers turn blue while in alkaline soil (pH above 7) they turn pink.
Human babies receive numerous vaccinations after birth. Like that, bee babies are vaccinated too, naturally, even before their birth. Worker bees bring to the queen a mixture of pollen, nectar, bacteria and pathogens in the environment. The Queen consumes the royal jelly that is consisted of the above ingredients and the bacteria are carried to the developing eggs. Therefore, the bee babies get vaccinated before being born.