Thanks to improvements in healthcare and many other areas, people today are living longer, healthier, and happier lives than ever before. And what’s more, these improvements are global. It’s happening in the developing countries as well. Africa, the poorest continent (eighteen of the poorest countries by GDP per capita are in Africa) is also no exception: the Infant Mortality Rate (IMR) declined significantly between 1960 and 2001. For example, in Ethiopia, as late as 1980, almost a quarter of the children died before their fifth birthday. Today, fewer than 6% die, which is still far too many, but the numbers continue to fall. And vaccines play a very crucial part here. But, supplying vaccines to distant clinics in hot climates served by poorly developed transport networks is a big problem. The vaccines must be kept between 2 and 8° C (36 to 46 °F). They need to be distributed in a temperature-controlled supply chain, which is called “cold chain”. Now, there are two new innovations addressing this problem.
Continue reading Two new innovations to save children from dying
One day back in 2005, Dr. Julian Bayliss was sitting at his laptop looking at Google Earth in 2005, to look for potential unknown wildlife hotspots in Africa. He was working an isolated mountain in Malawi, then he noticed that there were similar mountains over the border in Mozambique. There was nothing written about these mountains. As he zoomed in, he saw a dark green patch suddenly emerge, which looked like a rainforest. An expedition was scheduled, and it turned out to be just that: a rainforest, which was unknown to plant and animal scientists. Today, Mount Mabu forest is frequently referred to as the “Google Forest”.
Continue reading The Lost Rainforest of Mount Mabu
If you go out on a clear night when it’s full moon, you may notice how gigantic the Earth’s satellite looks when it’s near the horizon. But, in fact, that moon is the exact same size as every other time as you’ve ever seen it in the sky. You can test this by holding your thumbnail at arm’s length and comparing it to the size of the Moon when it is near the horizon and high in the sky, and you’ll see it doesn’t change size. Photographs of the Moon at different elevations also show that its size remains the same. In fact, it plays a trick on your brain which called the “Moon Illusion”. This illusion has been known since the ancient times, and an explanation of this optical phenomenon is still debated.
Continue reading Moon Illusion: why the Moon looks larger when it’s near the horizon?
Yesterday, I stumbled upon a YouTube channel named The Science Asylum. In this channel, physicist Nick Lucid covers some popular science subjects. For example, the video below, titled “How Far Away Is The Moon?” explains the distance between the Earth and the moon, and how our brains aren’t good at dealing with the big numbers.
Continue reading How Far Away Is The Moon?
A crescent-Earth photo, by an automatic camera aboard the unpiloted Apollo 4 command module on November 9, 1967, at an altitude of 11,200 miles (18,000 km). Apollo 4, (also known as AS-501), was the first unmanned test flight of NASA’s mighty Saturn V rocket, which was used by the U.S. Apollo program to send the first astronauts to the Moon.
Continue reading Earth as seen by Apollo 4
Where is the coldest known place in the Universe? It may sound strange, but today, it is here on Earth: in 1995, in a laboratory in M.I.T. (Massachusetts Institute of Technology), the German physicist Wolfgang Ketterle and his colleagues have cooled a sodium gas to the lowest temperature ever recorded, only half-a-billionth of a degree above absolute zero.
Continue reading Soon, the ISS Will Be the Coldest Known Place in the Universe
Imagine if your teacher looked like Gandalf from Space and explained everything about the universe in the simplest way possible. Meet Greg Quicke, the “bush astronomer” (aka #SpaceGandalf).
Continue reading Greg Quicke’s Astro Tours: He Made Science Easy
Here are some of the most googled crocodile whys about crocodiles and the answers to them.
Continue reading Top 10 Most Googled Crocodile Whys
According to measurements from Mauna Loa Observatory in Hawaii, with 410.31 ppm (parts per million), the level of carbon dioxide in Earth’s atmosphere hit a new high in April 2018. This is the highest point for the last 800,000 years.
Continue reading Atmospheric Carbon Dioxide Reached the Highest Levels in 800,000 years
ESA’s (European Space Agency) Gaia spacecraft has created the most accurate and detailed map of the Milky Way galaxy (and beyond) to date. The map includes high-precision measurements of nearly 1.7 billion stars and reveals previously unseen details of our home Galaxy. It is the second iteration of the map and published by ESA on April 25, 2018.
Continue reading ESA’s Gaia has Created the Most Detailed Map of the Milky Way