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For educational purposes, links to interesting articles on external sites are provided below. We have no control over the contents of those sites and accept no responsibility for them and information in them. If you decide to access these sites, you do so entirely at your own risk and in compliance with the terms and conditions of use of such websites.

>>> link to the article on www.popsci.com
HOW TO BUILD AN AIR PURIFIER IN 6 SIMPLE STEPS
Let’s clear the air about how easy it is to construct a $75 filter cube.


>>> link to the article on www.sciencealert.com
2 WORDS IN AN OVERLOOKED FLIGHT LOG REVEAL A CHILLING DETAIL ABOUT THE HIROSHIMA BOMBING


>>> link to the article on www.popsci.com
A NASA TELESCOPE WILL LIKELY PLUMMET TO EARTH ON WEDNESDAY
The decommissioned Swift Observatory turned a two-year mission into more than two decades of science.


>>> link to the article on www.livescience.com
'QUITE A LIGHT SHOW': NASA ASTRONAUT SNAPS ATMOSPHERIC FIREBALL AS RUSSIAN ROCKET EXPLODES OVER WEST AFRICA


>>> link to the article on www.livescience.com
MARS-BOUND ASTRONAUTS COULD FACE YEARS OF HEART SCARRING, RAT STUDY HINTS


>>> link to the article on www.sciencealert.com
EATING BLUEBERRIES EVERY DAY COULD REDUCE DEPRESSIVE SYMPTOMS IN OLDER ADULTS


>>> link to the article on www.sciencealert.com
THIS HAND-CRANKED DEVICE CAN TELL YOU YOUR BLOOD TYPE AND RED CELL LEVELS IN A MINUTE


>>> link to the article on www.livescience.com
5,300-YEAR-OLD KIDNEY STONE THE SIZE OF A GRAPE FOUND IN BRONZE AGE MAN'S BURIAL NEAR BLACK SEA


>>> link to the article on www.sciencealert.com
A HUGE EARTHQUAKE IN JAPAN 7,300 YEARS AGO PUSHED THE LIMITS OF HUMAN RESOURCEFULNESS


>>> link to the article on www.sciencealert.com
7,300 YEARS AGO, ONE OF EARTH'S WORST ERUPTIONS HIT JAPAN. WHAT HUMANS DID NEXT SURPRISED SCIENTISTS.


>>> link to the article on www.sciencealert.com
JUST 3 LINES OF MATH RULE OUT TIME TRAVEL IN MANY POSSIBLE UNIVERSES, PHYSICIST SAYS


>>> link to the article on www.sciencealert.com
INCA MUMMIES REVEAL DRUGS USED DURING HUMAN SACRIFICE


>>> link to the article on www.sciencealert.com
A GIANT BIRD DECLARED EXTINCT 150 YEARS AGO WAS HIDING IN PLAIN SIGHT


>>> link to the article on www.livescience.com
TRACES OF ANCIENT BLOOD FOUND IN 115 MILLION-YEAR-OLD DINOSAUR FOSSIL, NEW STUDY CLAIMS