Page 6 - Science Facts

Although Dmitry Mendeleev developed the periodic table of elements, he saw himself as a political economist and contributed greatly to Russia's economic development


The Russian chemical scientist, Dmitry Mendeleev, is widely known for developing the periodic table of elements.

But in Mendeleev's mind, this area of study was not his forte.

Mendeleev said: "Do you think I'm a chemist? I actually am a political economist."

He was right.

He created a development program for Russia based on industry instead of agriculture and by the end of 1890, when Russia started facing serious economic problems, Mendeleev’s authority on the subject started to be recognized.

He calculated the country’s custom tariffs and according to Maxim Savchenko, a professor at the Russian Customs Academy, “Not a single important decision concerning trade and industry was carried out without Mendeleev's approval."

Mendeleev predicted that oil would become a key component of the world economy and was the first to suggest the idea of using pipelines to transport the resource.

"Of the three major schools of thought in Russian economics, the most meaningful today is based on the ideas of Dmitry Ivanovich Mendeleev," said Mikhail Antonov, an economist at the Moscow-based Institute of Russian Civilization.

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Separating bananas from their bunch slows down the ripening process


Fruit ripens. We all know that. It gets softer, less green and often sweeter even though there’s a higher acidity level.

Not all fruit ripens at the same speed, however, and sometimes it’s possible to speed up or slow down a fruit's ripening process.

If you want a banana to ripen fast, you should keep it in its bunch, and if you want it to last a little longer before ripening, separate it.

It’s been shown that when a banana is separated from the bunch, it takes longer to ripen.

Around the world, people have been speeding up the process of ripening for thousands of years. Ancient Egyptian harvesters slashed open the figs they collected to stimulate ripening, and Chinese farmers would leave pears in closed rooms with incense burning.

Both of these things have been proven to speed up ripening.

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Do you sit down at work? It may be killing you!


Parents are always telling their energetic children to sit down and stay quiet.

Let's hope they don't continue obeying that rule as they get older since sitting still is one of the biggest causes of premature death in the world.

Couch potatoes be warned! Get off your butt and go have some fun.

A lack of physical activity isn't just one of the most common causes of death in the world—it's also the most preventable death.

The risk starts to greatly increase for those that sit more than five hours a day, which is way long than the average office work day.

If you don't just keel over and die from sitting around too much, you may come down with some chronic disease.

People who sit for more than four hours a day have a 40 percent higher risk of things like depression, diabetes, colon cancer, high blood pressure and a whole mess of other non-fun things.

The cure is exercise. People who work out four hours a week or more are as healthy as those that sit less than four hours a day. Get out and take a walk!

(Source)

Some awesome lists!

In 1965 a 'grossly obese' man survived without eating for 1 year and 17 days. He lived entirely off his copious body fat and ended up losing 125kg of weight with no adverse effects


You can’t live without food for long, right? Food provides us with energy, and without it, we would simply run out.

While it’s true that without food we would run out of energy, how long you can go without food varies. You need look no further than a hibernating bear to see evidence.

A bear is not a human, though. Can humans last for months without food?

This question was answered in 1965 when a man went over a year without eating! 382 days to be exact. This is the longest recorded fast to date.

The patient remains unnamed, but there are a few things known about him. He was 27 years old and weighed 456 pounds at the start of his fast. Fasting was an acceptable therapy for the obese, but doing so for longer than 40 days was considered dangerous.

The patient presented himself for normal treatment, but since he adapted so well to the fasting, he decided to try and keep it up for as long as he could or until he reached his ideal weight. During this time he only had to poop every 40-50 days.

Unlike a bear in hibernation, however, the man was given vitamin supplements daily. The fast was mostly uneventful, but some adjustments had to be made to keep him healthy.

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Despite what you may think, tapping the top of a shaken soda can will not prevent the soda from gushing out, but tapping the sides will


We all know that if a can of soda has been shaken, it is best not to open it immediately otherwise most of the drink will gush out of the can in a mini-explosion of liquid, causing a huge mess.

But we all think we have a trick to solve this problem. If the can was accidentally shaken, we just tap it on the top and all will be fine, right?

Wrong! Tapping the top will make no difference. There is a scientific reason why it does not settle the soda.

When a can of soda is shaken, bubbles form on nucleation sites on the sides of the can.

A nucleation site is little discontinuities in the can that encourage dissolution of gases when equilibrium is disturbed - and a bubble of CO2 will grow there until buoyant forces separate it from the surface, at which point it rises, and another bubble immediately begins to grow on that site.

As was explained, these bubbles form on the sides of the can and tapping the top therefore does not make sense.

If you tap the sides of the can, however, it loosens the bubbles from their nucleation sites and then you can safely and without flinching open your can of soda.

(Source)

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