Among the measuring quantities and their respective SI units,Amount of substance is measured by Moles.Then what does Mass measure? What’s the need of having these two measuring scales?
Globally, commercial power generation through combustion emits nearly 10 billion tons of Carbon Dioxide per year.
The tiny 4 hands of a single gecko are capable of supporting a weight of about 133 kilograms.
It is impossible to sneeze with your eyes open.
Sun heats up the Earth’s surface at daytime.As a result the air layer located just above the ground gets heated. The heated air rises up in the sky along with convectional currents.This rising air can give an upward lift to a surface that it hits. Eagles and hawks spread their wings to their maximum surface area to gain this lift,and so they don’t’ need to flap their wings to fly.
You may have noticed that in noon, eagles and hawks can glide in the sky with their wings flat, rather than flapping them to fly. Do you know how they manage to fly by keeping their wings flat?
Best resolution ever reached by camera technology is nearly 100 megapixels, but believe the human eye is nearly 576 megapixels.
Dog’s brain is only one-tenth the size of a human brain, but the part that identifies smell is 40 times larger than in humans.
During the time water is falling, air in the atmosphere mixes with water. When it comes to the bottom area of the waterfall, the amount of air mixed in water becomes high. Presence of air bubbles reduces the density of water. As a result the upthrust(Upward force) that a swimmer gets from water reduces. This increases the probability of someone drowning when swimming in such an area.
It is not recommended to go swimming around the bottom area of a waterfall, as there’s a higher risk of drowning in water. What may be the reason?
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
Puppies are born deaf and cannot hear until they are about 21 days old.
In space, astronauts cannot cry properly, because there is no gravity, the tears can’t flow down their faces!
The elephant is one of the few mammals that can’t jump!
It takes glass one million years to decompose, which means it can be recycled and used infinite amount of times.
Ever wondered what the word Googol means? It is the number written as 1 followed by 100 zeros, or 10 to the power of 100.
Remember it’s not the name of search engine Google. The founders have misspelled the word Googol at their start.
To produce 1 kilogram of honey, bees need to collect nearly 4 kilograms of nectar.
To collect this amount a single bee should fly for about 20,000 meters.
Tires get heated up when travelling a long journey.This rises the temperature of the air inside it. The pressure of air increases when the temperature is increasing.So if we check the pressure at this time,it will give a higher reading To get the true value, you must stop and let them cool down to the room temperature.
When you are on a long journey and need to check the air pressure of vehicle tires,you must stop and wait for a while until they cool down. What may be the reason behind this?
People visiting the Empire State Building in America are always given this famous warning.
“Don’t drop a coin off the top. It can even kill a person walking down,as it gains a massive velocity by falling a 443 m height.”