What are the most fascinating science facts?

 

1. Our bone marrow makes around 2 million red blood cells every second.
2. A single red blood cell can carry about one billion packets of oxygen around your body. You have around 25 trillion red blood cells …….. so that is too much of oxygen.
3. One drop of blood contains around 5 million RBC’s.
4. Your heart will beat more than 3 billion times if you live to old age and will have pumped enough blood to fill an oil tanker 46 times over.

5. Scientist can use one strand of hair to find out a person’s age , sex and race.

6. A brain weighs about 1.4 kg but if all water were squeezed out of it it would be just 283 gms.

7. Within the troposphere the air temperature drops by about 6.5 degree C per 1000 m of altitude.

8. An average lightning storm can discharge enough energy to supply the entire USA with electricity for 26 minutes.

9. A melting iceberg makes a fizzy sound known as ‘ Bergie Seltzer ‘ . It is caused by trapped air bubbles that pop as they are released.

10. The temperature of most of the Universe is -270 d. C and only 3 degrees warmer than the coldest temperature possible.

11. Even on the clearest darkest night you can see fewer than

1 / 100,000,000,000,000,000 of stars in the Universe.

12. A pinhead sized speck of gas from our Sun could kill a man 160 km away.

BONUS FACT - Most comets have two streaming tails - A blue one made of gas and white one made of dust.

All for today. Enjoy !!!!

Source - Ripley books.

What is something about numbers that most people don't realize but you find fascinating?

 Pick any number from a newspaper, tax return, or list of river lengths. You'd think the first digit is random. In reality, nearly a third of them start with 1, and only 4.6% start with 9.

This counterintuitive phenomenon is known as Benford's Law, or the law of anomalous numbers. It dictates that in many naturally occurring collections of numbers, the leading digit is likely to be small. The digit 1 appears as the first digit about 30.1 percent of the time, 2 appears 17.6 percent of the time, and the probabilities steadily decrease until the digit 9, which appears less than 5 percent of the time.

The reason this happens comes down to how things grow. Many systems in the natural and human worlds grow exponentially or multiplicatively, rather than by adding a fixed amount. For example, if a city has a population of 100,000 and grows at a rate of 5 percent a year, it takes a long time to reach 200,000. During all those years, the population figure starts with a 1. Once it finally reaches 200,000, growing at that same 5 percent rate means it will reach 300,000 much faster. By the time the population reaches 900,000, a 5 percent increase adds 45,000 people in a single year, blasting through the 900,000s and rolling over to 1,000,000 very quickly. The number spends far more time starting with a 1 than it does starting with an 8 or a 9.

Benford's Law applies to a staggering variety of datasets, including:

• The populations of cities and counties
• Stock market prices and trading volumes
• The lengths of rivers and heights of mountains
• Accounting figures and corporate expenses

Because this pattern is so pervasive, forensic accountants and auditors actively use Benford's Law to catch fraud. When people try to invent fake numbers for tax returns or expense reports, they usually try to make the data look random by evenly distributing the first digits. A fraudster might assume that starting fake expenses with a 7, 8, or 9 is just as unsuspicious as starting them with a 1 or 2. An auditor analyzing those figures will immediately notice the lack of 1s and the overabundance of higher digits, flagging the documents as artificially fabricated. The very attempt to make the numbers look natural is exactly what exposes them as fake.

Are there any fascinating unknown facts about IC 814 Hijak?

• Advani : Lal Krishna Advani -then Indian Union Home Minister- flatly refused to negotiate with hijackers as it would have depicted India as weak nation.

• He wanted a tough action against them.
• This veteran leader known for his nationalism and straight talk reluctantly agreed

• Ajit Doval : Present Indian National Security Advisor was the chief negotiator with hijackers.
• He went along with ISI officials (in camouflages) and talked with hijackers.
• He was not happy with fragile diplomatic tactics adopted by India as hijackers were already assured of safe exit by Pakistan.

• Jaswant Singh : Indian Foreign Ministers accompanied released terrorists in a special plane to Kandhar held by Taliban .
• It later earned him ire and ridicule of many Indians.
• Well, this former Indian army officer, was better known for his suave manners, learning and nationalism.

• Media : Ajit Doval- a seasoned spymaster- blamed media pressure for haphazard approach adopted by India in this shocking incident.
• Birthday : Hijackers celebrated birthday of a passenger and cut birthday cake along with cabin crew and passengers. They later gifted her a Pashmina Shawl.
• Jokes : Just to conceal their identities; hijackers sang and told jokes.

• Note : There are no fascinating; but, hard facts about this entire fiasco.
• Well :”Today one can dare anything, and, furthermore, nobody is surprised”.: Paul Gauguin
• Pic Credits : Google Images/Web

What are the most fascinating science facts?

One thing that has, and always will fascinate me is Einstein’s Special Theory of Relativity, or more specifically, time dilation.

You might be wondering; what the hell is time dilation?

Well, time dilation is the slowing down of time due to gravitational fields or traveling at extremely high velocities.

Basically, that means that the faster you move, the slower time flows for you relative to everyone else. The same thing will happen if you are near a significant source of gravity (such as a neutron star or black hole).

But, as I mentioned earlier, time dilation is relative. If you were on a ship traveling near the speed of light, everything would appear normal to you. You wouldn’t move in slow motion. To you it would appear that everything outside your frame of reference (which is your perspective at your velocity) is aging quicker.

This gives rise to an interesting thought to me. Think about all the motion you’re currently experiencing.

You may be moving in a car, or walking somewhere.

You are also moving along the Earth’s axis as it rotates.

You are also moving along the Earth’s rotational path around the Sun.

You are also moving around the rotational axis of the Milky Way, around the supermassive black hole Sagittarius A.

And finally, you are also moving towards the galaxy Andromeda, along with the rest of the Milky Way.

Picture all of those different vectors and degrees of motion you’re experiencing.

Now imagine how time must be flowing for us compared to say, an outside observer who is stationary relative to the Milky Way.

To me, that is certainly a fascinating fact.

What are the most fascinating science facts?

 Something that is truly incomprehensible are the voids that occupies the space between the visible matter in the universe. Some voids appropriately called “Super Voids” can be millions of light-yeas across.

For example; The ‘Boötes Void’ — It’s 250 million light years of almost NOTHINGNESS.

Photo; Wikipedia

From this image it might not look that bad until you realize that almost all of the galaxies shown in the circle lie in front or behind it to date only 60 galaxies has been found within this void. A space that large could easily contain 10,000 galaxies when compared to other regions.

Just imagine if an alien civilization like our own exists on a planet within one of these galaxies the nearest neighbor would be tens of millions of light years away.. Even worse, if your planet is orbiting an intergalactic star, it’s a star or star system that has been ejected from its home galaxy and is now floating freely through the cosmos.

Photo; Wikipedia

2.

Magnetars is a form of extremely magnetic neutron stars from around 400 kilometers, the magnetic field would strip you of all metallic objects such as your phone, watch, belt, and so on.

And if you got really close it would eventually start ripping out the iron in your red blood cells out of your body.

3. There’s a weird correlation between the distance and size of the Sun and our Moon because during a solar eclipse..

the moon almost prefectly covers the Sun but there’s really no physical reason why this has to be the case. The moon just happens to be 400 times smaller than the Sun, but the Sun just happens to be 400 times further from the earth than the moon…

Another object we can see with the naked eye is the Andromeda galaxy, and it looks like a little something like this

Photo; Lemmino / Youtube

But because Andromeda is so far away, we only see the very bright center of it. If we could see all of Andromeda our skies could look like this, every night;

It would be several times larger than the moon even though it’s 2.5 million light years away.

What are the most fascinating science facts?

 

• The human stomach can dissolve razor blades

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• A laser can get trapped in water

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• Earth’s oxygen is produced by the ocean

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• Animals use Earth’s magnetic field for orientation

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• A cloud can weigh over a million pounds

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• Soil is alive and well

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• Rats laugh when being tickled

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• There are more trees on Earth than stars in our galaxy

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• Oxygen has a color

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• Only two letters don’t appear in the periodic table

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• Bananas are radioactive

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• Hot water freezes faster than cold water

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• Cold water heats up faster than hot water

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• Humans are related to fungi

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• But don’t worry—we have a lot of DNA

What are the most fascinating science facts?

 When we would get into a very fast spacecraft and speed up, we would still observe the speed of light to be exactly the same. If we move towards the source light will not speed up, if we move away from the source light will not slow down. It will remain exactly as it is.

When we are at fast speed and use a light clock to measure time (by bouncing a photon between two mirrors) we would see exactly the same speed, each bounce would be identical.

Yet when we look from outside our spacecraft, for example from earth, we would see that the clock runs slower.

When we would travel at nearly light speed we would see that time seems to have stopped from the perspective from the outside observer.
And for us the first picture still applies, we observe only straight bounces, each indicating the same time frame.

When we would travel at exactly light speed time would stop for us.
There would be no bounce between the mirrors anymore.

More on this subject on the wiki on: Time dilation

Now suppose we are travelling on a photon which was send out shortly after the Big Bang. It would have travelled over 13 billion years and we would only observe it right now. Before that it just travelled through empty space and from the perspective of the photon it would be the moment it was generated. Time stopped right after it. So while it travelled 13 billion years we can also say it's not even a millisecond old.
The only way we as outside observers would know that it's this old is because it's extremely red-shifted, an indication the source is moving away from us at high speed. Check out Cosmic microwave background

And here we are. Sitting looking at the stars. We see the light of stars that might not even be present anymore.
The light from the Andromeda Galaxy travelled some 2.5 million years to reach us:

And yet when the photon hits our eye it does this the exact moment that it left the star, from the perspective of the photon that is. We are looking at the past and present at the same time. And that's really odd.

What are the most fascinating science facts?

 

• Contrary to the popular belief maximum oxygen on Earth comes from the oceans. (Atleast half of it)
• Marine organisms such as plankton, seaweeds and other photosynthesizer are direct contributor to the fresh air.

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• There are more trees on Earth than stars in our galaxy.
• There could be about 100 billion to 400 billion stars in the Milky Way. Whereas according to 2015 journal Nature the number of trees around the world is about3.04 trillion.

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• The Moon is lemon-shaped.
• Our natural satellite isn't actually spherical, as it seems to be, but, instead has flattened poles and bulges around the Equator, which makes is overall actual shape, lemo like.

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• Mercury is still shrinking.
• In 2016, data from Mercury Surface, Space Environment, Geochemistry and Ranging (MESSENGER) aircraft revealed cliff-like landforms known as fault scarps. Because of their relatively small size, scientists are sure that they are newly formed (comparatively) and that the planet is still contracting.

• Babies are born with as much as 300 bones.
• As we grow old and taller many of our bones fuse together making the over-all count to be 206.

• The Apollo astronauts' footprints on the moon will probably stay there for at least 100 million years.
• Thanks to the absence of atmosphere on moon, there's practically no wind or water to wash these foot prints off.