How often we should wash the bed as it can't be done regularly? Don't worry here is the solution

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After a hard day's work, lying in bed with freshly washed linens is a great pleasure. However, washing the sheets is a complicated process, including going to the washing machine, drying it for a long time , and the daunting task of making the bed. So do you need to wash your bedding often?

Yes, bed linen should be washed regularly. It's not even about the pleasant smell of the washed sheets, but about hygiene.

Experts say that various waste products from the human body remain on the sheets. Sebum, dead skin cells, saliva and sweat particles accumulate on the laundry. Dead skin cells are especially unpleasant as they feed the dust mites. Every day, a person sheds one and a half grams of skin, which can feed a million arachnids. Mites, invisible to the human eye, and their excrement cause allergies in a large number of people.

After a hard day's work, lying in bed with freshly washed linens is a great pleasure. However, washing the sheets is a complicated process, including going to the washing machine, drying it for a long time , and the daunting task of making the bed. So do you need to wash your bedding often?

People who sleep naked also leave bits of dried feces on the sheets, according to Michael Schmidt, a microbiologist at the Medical University of South Carolina.

The problems described are often difficult to identify "by eye", so it is difficult to tell when the sheets become truly dirty. Because of this, many people put off their laundry for a month, sometimes even a year. The ideal schedule for washing your bed linen is once a week. To prevent dust mites from appearing, it is recommended to use hot water (at least fifty degrees).

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What if I can't use my washing machine once a week?

You need to make up your bed every day - when you make it up, tiny dry particles that have accumulated on the sheet fall to the floor and become work for the vacuum cleaner.

You can also reduce the amount of germs and dirt you leave on your bedding by taking a shower right before bed.

Buying multiple bedding sets helps you use your washing machine less often.

Source: Popmech

Do You Know? Heavy elements like Gold, are formed after the death of the stars after large explosion

[ImageCredit: NASA]

Heavy elements , eg , such as gold , are the result of the death of stars, when they explode or face. In a new study, scientists have uncovered the origins of various elements.

According to astronomer Carl Sagan, we are made of "stellar matter." This is a beautiful and even poetic reminder that life on Earth is closely interconnected with the processes that have taken place in the Universe for billions of years.

But what elements do these or those stars produce? This issue is still a matter of controversy. It is also unknown what proportion of the elements appears in this or that event.

Therefore, scientists, led by astrophysicist Chiaki Kobayashi from the University of Hertfordshire, have compiled a special periodic table of elements, which is based on the stellar origin of elements - from carbon to uranium.

It turned out that there is a big gap in our knowledge of where gold comes from. The researchers also stressed that a clear understanding of the origin of the elements not only helps us to estimate the amount of stellar matter in our bodies, but also to learn more about the evolution of the universe.

"The stars in the modern galaxy are fossils that hold information about the properties of the stars of the past," Kobayashi and her colleagues wrote in their study. "This approach is called galactic archeology and can be applied not only to our galaxy, but to others as well."

The Big Bang, the event that started the universe, became the main source of the lightest elements: hydrogen, helium and lithium. Then the stars began to create complex heavy elements, including those necessary for the formation of life, such as carbon, oxygen and nitrogen, as well as metals and, in particular, gold, silver and iron.

The origin of almost all elements can be traced back to several sources. “The contribution of each source depends on time and environment (ie the mass and type of galaxy). Therefore, it is necessary to use the Galactic Chemical Evolution (GCE) models to assess the contribution, ”the scientists explain.

Collisions of neutron stars with other dead celestial bodies are rare, which means that as a result of such events, not so many elements that exist in the Universe are produced. But earlier, scientists assumed that it was the merger of neutron stars that became the most important source of gold in the Universe.

New models created by Kobayashi's team showed that there were too few collisions of neutron stars in space, which could not have produced the amount of gold that we see. The researchers speculated that gold produces a special type of rotating supernova with strong magnetic fields.

Perhaps the study underestimates the number of collisions of neutron stars given that astronomers have just begun to directly observe these events.

Stars more than eight times as massive as the Sun explode into supernovae. This process produces neon, silver and iridium.

Smaller stars such as the Sun shed their outer layers as they die, resulting in the enrichment of the universe with nitrogen, lead and strontium.

White dwarfs sometimes explode with special types of supernovae, resulting in the appearance of manganese, iron and nickel.

The phrase "star business" beautifully and succinctly describes all these complex processes. But behind the poetic epithet is a wealth of fascinating research that explores the staggering variety of elements that appear around us.

Source: Popmech

New study: COVID-19 leads to long-term fatigue

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New research, published in the journal medRxiv, more than half of patients, undergoing COVID-19, experienced severe fatigue after recovery, irrespective of disease severity. Scientists are pushing for more research on the medium and long-term effects of the coronavirus.

The study involved 128 patients under the supervision of St James's Hospital in Ireland. Scientists wanted to find out how people with varying degrees of severity of the disease tolerate the effects of COVID-19 weeks after recovery. The results of the study showed that nearly 52 percent of the participants felt tired within ten weeks of the recovery from that pandemic. However, the result did not depend on the state of health during the illness. The scientists learned that it didn't matter whether the person was hospitalized or not.

The study also showed that women most often felt a simultaneous fatigue - among all patients with fatigue, they were 67 percent. People who previously suffered from depression also had increased fatigue.

The study authors argue that more work is needed to assess the long-term impact of COVID-19 on patients who have been received previously from this extreme pandemic.

Surprisingly, Coronavirus is not the first dangerous disease to have such symptoms. There are also diseases like Pneumonia and glandular fever are often accompanied by "chronic fatigue syndrome" - a disease associated with overwork and loss of strength, which does not go away even after a long rest.

Source: Popmech

Five computer pranks: how to harmlessly annoy a friend

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If you are bored in the office , if a friend left the computer turned on in front of you, it's time for a good prank. We have collected five of the best computer " pranks": from the simplest and most famous to the most inventive.

1. Block his favourite site

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To anger or scare a friend, you can simply "cut off" his access to your favorite site.

Find the " hosts " file at C: \ Windows \ System32 \ Drivers \ etc \ hosts . Using notepad or a text editor, open it as administrator and add the line "127.0.0.1" and the site address without  http . Save your changes.

Now your friend will not be able to open his favorite site, be it Vkontakte or Facebook. To put everything back in place, just open the hosts file again and delete the written line.

The draw may not work on the latest version of Windows 10.

2. Freeze desktop

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This is the most popular and simplest computer prank. First you need to take a screenshot of the desktop. Press the Print Screen , go to Paint and paste the image by using the Ctrl + the V . Save your images and set it as your desktop screensaver. Then right-click on a free area, hover over "View" and uncheck "Show icons".

It remains to wait until your friend starts clicking on the inactive icons, checking the mouse and panicking.

3. Command line recursion

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This "prank" is one of the most unpleasant, and can only be canceled by restarting the computer. Therefore, carry it out at your own peril and risk.

Create a text document on your desktop and write this code into it:

@echo off

: loop

start cmd

echo loop

goto loop

stop

Save the document using the Ctrl + S combination and rename it to " (any name) .bat ". Any name can be anything that makes a friend click on the icon. After starting, the command line will start to open recursively, and the only thing that can stop it is restarting the PC.

4. Change mouse cursor

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Make it like your friend's computer is always busy.

Go to "Control Panel", then under "Devices" click on "Mouse". Select Advanced Mouse Options, and in the window, click the Pointers tab. Change your normal mouse cursor to busy and save your changes.

5. Remotely control your mouse or keyboard

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For this draw, you don't need to write lines in a notebook, search for the " hosts " file or take screenshots. It is enough to have a wireless keyboard or mouse (both are better).

Discreetly insert the USB adapter from the wireless device into the back of the system unit. Now you can control your friend's mouse or keyboard. Scare him by typing strange messages or clicking on all the icons.

For the most diligent, you can install a program for remote computer control, like TeamViewer.

Source: Popmech