The revolutionary helmet-gun, solar cycle 25, the history of Microsoft Office, light's journey through the cosmos, and the Sun as a gravitational lens. As always, I've tried to limit content about the coronavirus, which is what abounds these days, but something always slips in. Enjoy!
What is solar cycle 25, the new reversal of the Sun's magnetic poles and what consequences it may have for Earth: "A new period is about to begin: solar cycle 25, a new phase of changes in the Sun's polarity that, according to astronomers, will extend until around 2030. According to a projection from the Space Weather Prediction Center of the National Oceanic and Atmospheric Administration (NOAA/NWS), its start is scheduled for this month, and although it may be delayed due to the variability of solar activity, the first signs have already begun to manifest."
The clothes of the ancient Egyptians. Nudity in dress: "The sunny climate of North Africa, in the fertile Nile Valley, allowed little need for clothing. The warm environments of the Near East and Egypt would show people more naked than clothed, although in Mesopotamia, during the ancient civilizations of the Euphrates Valley, such as the Assyrians and Babylonians, they wore more garments than the Egyptians themselves, perhaps the most naked or half-naked of all, or at least, art conveys that sense of sensuality within its daily eternity."
The history of Microsoft Office, evolution of the best office suite: "On the other hand, the evolution of "office automation" has been intimately linked to the evolution of Microsoft Office, since Microsoft's office suite usually goes one step ahead in offering new features that make life easier in cubes and office workers' work. Precisely for all these merits, in this article we want to review the evolution of Office from its embryonic state, to the monster of the corporate world it has become today."
Does light travel eternally or does it fade away at some point?: "In a vacuum, any electromagnetic wave, including light, could travel in a straight line eternally and at that speed. What happens is that there is no vacuum; in our universe there are many things, such as galaxies, stars, planets, and also dust, gases, ions, and those things are what prevent that eternal and linear journey of light. Einstein's theory of relativity explains what happens. Although electromagnetic waves have no mass, stars and planets attract them, and that causes their trajectory to curve."
The revolutionary helmet-gun: "The invention and improvement of firearms was a warlike advance that made large armors and classic hand-to-hand weapons obsolete. However, in addition to limited ammunition and possible technical problems, at best it only left one hand free during use. To that end, at the beginning of the 20th century a solution was devised."
Using the Sun as a gravitational lens to see the surface of extrasolar planets: "Can you imagine being able to directly see the surface of an exoplanet the size of Earth? I'm not referring to seeing it as a simple point, but to being able to see its surface, including possible oceans and continents. Today this is simple science fiction, but it could become reality in the future. To achieve this incredible resolution we would need a set of space telescopes working through optical interferometry. Although there is another slightly simpler option that would allow us to achieve the same spectacular results with a space telescope equipped with a main mirror of only one meter in diameter."
Chess training plan for beginners: "In this article we are going to structure a training plan for the level mentioned in the title, but even if you are intermediate, I consider that you can use it with small adjustments according to your training pace and the areas you want to strengthen. The plan we will see below is aimed at the average hobbyist who usually takes charge of their own training as time permits and who has the firm goal of improving their chess." If you want a page to improve your skill, use Lucas Chess.
Quino - "Old age is much worse than I used to draw it": "Yes, of course I am a political cartoonist. My family, of Spanish republicans, was highly politicized and it was inevitable. The films of Charles Chaplin and Buster Keaton that I saw when I was little also instilled that in me. In fact, I always liked to do humor without words, like them. Later, the movies took that habit away from me."
The universal catarrh: "This "great catarrh" had its origin in Asia, from where it advanced to Europe, even reaching America. Its consequences were devastating: "Almost all of Europe was affected within six weeks, and it is said that only twenty percent of the population escaped the disease." Recently, a study has pointed to the possibility that it was not so much a flu as an epidemic of whooping cough[3]. The evolution of the disease and the fact that it originated in August, with high ambient temperature, are some of the reasons that make the authors of this study think that it is an outbreak of whooping cough."
Telephone use restrictions during the 1918 flu: "In the specific case of New York Telephone Compaly, its notices explained the problem with the lack of operators and warned that there was no quick solution. In some cases, when the company received a call and before making the connection on the switchboard so that they could talk, they made sure of the necessity of the call. If it was not necessary, it was discarded. To avoid this situation, which already occupied the operators, they asked that calls be voluntarily restricted."
A love story, borders and Coronavirus: "Inga Rasmussen and Karsten Hansen met a couple of years ago on a trip for senior citizens. She is Danish, 85 years old, and lives in Gallehus, seven kilometers from the border with Germany. He is, of course, German, already 89 years old, and also lives seven kilometers from the border, but on the other side, in the town of Süderlügum. Since they met, they have spent many hours together, made more trips, and tried to see each other daily. And then the Coronavirus arrived."
Scientists launch a new warning to humanity, insects are disappearing: "We are causing the disappearance of insects through the destruction of habitats, their degradation and fragmentation, the use of polluting and harmful substances, the dispersal of invasive species, global climate change, overexploitation, and the co-extinction of species that depend on others", write the authors of the article.
VIDEOS: Tesla Model 3 vs Harley-Davidson, the Harry Potter song on crystal glasses, the best movie songs, kid vs chin, the beautiful siphonophore Apolemia, the effect of glue on cinnamon, the athletic serval cat, creates AI to escape from Zoom, amazing mechanical creations, fishing dog, the sound of little foxes, how to pass the salt while maintaining social distance, Mad World by father and daughter, restoring a 12-million-year-old crab fossil, his window breaks in the automatic car wash, Need for Speed in real life, upside-down hippo, "Can't Touch Me" - Corona Virus MC Hammer Parody, a homemade ecosphere, before and after the coronavirus, the Trevi Fountain, order coffee with drone, The Little Mermaid in real life, and the short films Cured, CUPHEAD THE MUSICAL: REanimated!, The Heretic, and finally, the Project 88 - Back to the Future Too (the entire movie filmed by thousands of people).
GALLERIES: New techniques to protect yourself from Covid-19, the beaches of Venice in 1970, many very cute bunnies, art with eggs, sculptures with masks, New York in 1940, animals with disabilities, the blasphemous art of Paolo Girardi, coronavirus waste, the digital art of Izzy Medrano, the green dress of the Queen of England, animals returning to the streets, the naked cat, Russian girls of 1990, the human remains of ancient Peru, classic paintings recreated, rainbow gelatin, Hemingway's photos in Cuba, more photos of the beautiful Crystal Gayle, how to make deodorant at home, apartments for singles with cats in Japan, horrible photos of wild animals, the neon of Japan and Korea, Constantinople in 1890, the Animated Dump and the Visual Dump of the week.
Hey! HEEEEY! Are you still there? Well, thank you very much, finishing all the links is not for everyone. Congratulations on the achievement and thank you, thank you very much, for your visit. A big hug!
