検索キーワード： 科学・テクノロジー

Interesting fact, the sun is terrible at fusion. Think about it, why hasn't the sun just instantly ignited all its fuel, and blow up all the milky way? The limiting factor infusion for the sun is one, heat, and two beta decays. The first you likely knew, but beta decay, "whatchu talking about Willis?" I'm quoting Arnold from one of my favorites shows growing up called Different Strokes. Well, when you smash two hydrogen atoms together, you get what we call a di-proton. It is sometimes called Helium-two, and boy does it not like existing.

Penny's story is the fourth in Brian L. Porter's award-winning Family of Rescue Dogs series. It features a tiny terrier, abandoned in a particularly cruel manner and her subsequent adoption and life with the author and his family. From being attacked and needing emergency surgery to days out at the coast chasing seagulls and living in stately homes, Penny's life in Brian's pack of rescue dogs has never been anything but interesting and eventful.

Az evolúció legképtelenebb, sületlen, hagymázos ötlete minden kétséget kizáróan az ember, becenevén a Homo sapiens. Öt-hatmillió éve a bioszféra üde színfolt lehetett a bolygón sokféle állattal és növénnyel, az ökológiai rendszer kiegyensúlyozott volt, és úgy tűnhetett, hogy megalapozott, tartós jövője sok százmillió évre biztosítva van. És ekkor a rendszer finom, olajozott kerekei közé por, autóroncsok, enzimes mosópor került. Recsegés, ropogás, füst és korom. Mi történt?

In the mid- to late-19th century, a burgeoning science called electricity promised to shine new light on a rousing nation. Inventive and ambitious minds were hard at work. Soon that spark was fanned, and a war was under way to be the first to light - and run - the world with electricity. Thomas Alva Edison, the inventor of direct current (DC), engaged in a brutal battle with Nikola Tesla and George Westinghouse, the inventors of alternating current (AC). There would be no ties in this race - only a winner and a loser - and the prize was a nationwide monopoly in electric current.

HOW DO I MAKE IT BIG ON SOCIAL MEDIA? WHAT IS MY STORY—AND WHO IS MY AUDIENCE? WHAT CONTENT SHOULD I POST TO ACHIEVE #SUCCESS? HOW DO I GO VIRAL…OR HOW LONG WILL IT TAKE ME TO GET NOTICED? Selfie Made is a one-of-a-kind guide to creating a digital identity, finding an audience, and building...

Less than a hundred years ago, science seriously debated whether a cosmic array of stars and galaxies extended beyond the Milky Way. Discoveries and theories have revealed a universe of increasing enormity, complexity, and mystery. The Big Bang follows the pioneering observations of Edwin Hubble and the early insights in cosmological theory by Alexander Friedmann and Father Georges Lemaitre.

In May 1869, the U.S. railroad network unified when the Central Pacific and Union Pacific railroads came together in Promontory, Utah. The Transcontinental Railroad: The Gateway to the West discusses this important milestone in the expansion of the United States and its impact on the nation, both positive and negative. This book tells how the east-west railroad played an integral role in opening western markets to the residents of the eastern United States, but it also examines how the railroad led to the demise of many American Indian groups in the West.

Am 12. April 1912 lief die R.M.S. Titanic mit 2.200 Passagieren an Bord zu ihrer Jungfernfahrt Richtung New York aus.

The human species is relatively new to the planet in geologic terms. With origins reaching back only a few million years, the rise of humans from primate ancestors is a remarkable evolutionary success story. Early Humans traces the beginnings of the human species, its success and adaptability, and the development of such innovations as human language and culture.

Jean-Edgar Van de Burne (né le 5 septembre 1940 à Dunkerque, France) est un scientifique qui s'illustra successivement dans les domaines de la phycologie, de la biochimie appliquée, de l'ingénierie et des statistiques transverses bio-politiques. Tout en ne laissant jamais de côté sa grande passion pour les tournois de bridge, il contribue alors largement au développement des plaques de cuisson thermonucléaire pour lesquelles il reçoit le Prix Nobel de la Paix en 1985.

Audiokurs pomozhet uchashhimsja v osvoenii neobhodimogo materiala po kursu fiziki v 10 klasse obshheobrazovatel'noj shkoly. Vazhnoj temoj audiokursa javljaetsja razdel «Mehanika», vkljuchajushhaja dinamiku vrashhenija tverdogo tela, osnovy molekuljarno-kineticheskoj teorii i termodinamiki, elektrodinamiki i elektronnoj teorii.

world of Fun Science! I'm Charlie, also known across the Internet as charlieissocoollike. In my book I'll be taking you on an awesome journey through the cosmos, beginning with the big bang through to the solar system and the origins of life on Earth, all the way down to the particles that make up everything around us (including you and me!). Expect frequent digressions into not-so-sciencey things (e.g., a microwave flying through space) and audio packed with my all-time favourite mind-bending science facts.

This series aims to lift the veil off of these developments and shed light on how each could affect society in the years ahead. This audiobook - the first in the series - begins the tour with a look at many areas of the entertainment industry, including television, movies, music, printed media, and video games.

In this dynamic account, award-winning author Paul Fleischman arms teens with the basic tools to uncover vested interests and falsehoods by vetting sources, following the money, and checking references so that they can make informed decisions about what actions to take in the worldwide battle against climate change, overconsumption, and dwindling resources.

Featured in the 2018 movie Science Fair! A National Science Teachers Association Best STEM Book of 2017 In this acclaimed memoir, teen innovator and scientist Jack Andraka tells the story behind his revolutionary discovery. When a dear family friend passed away from pancreatic cancer, Jack was...

Warum sind wir Menschen so verschieden? Sind wir nicht merkwürdig, wir Menschen, mit verschiedenartigem Aussehen, anderen Sprachen und unterschiedlichen Religionen? Der Evolutionsbiologe Josef H. Reichholf greift das Thema Evolution anhand der alltäglichen Erfahrungen auf, die junge Menschen z.B. bei ihren Mitschülern machen: Jeder Einzelne ist anders, dazu kommt die äußerliche Verschiedenheit durch Kinder asiatischer oder schwarzafrikanischer Herkunft.

From National Book Award finalist Albert Marrin comes a fascinating look at the history and science of the deadly 1918 flu pandemic--and its chilling and timely resemblance to the worldwide coronavirus outbreak. In spring of 1918, World War I was underway, and troops at Fort Riley, Kansas, found...

An informative introduction to Darwin's discovery. In his groundbreaking book Natural Selection, Charles Darwin explained his theory that evolution is driven by adaptation of species to their environmental surroundings.

Wurmlöcher, Zeitreisen und das Rätsel vom Urknall – mit Stephen Hawking den Geheimnissen des Universums auf der Spur. George und seine Freunde sitzen in der Klemme: Eric hat mithilfe von Supercomputer Cosmos nicht nur ein Portal für Schwein Freddy geschaffen – er hat George obendrein auf einen Ausflug zum Mond mitgenommen! Zur Strafe droht die Wissenschaftliche Organisation, Cosmos zu beschlagnahmen. Damit ist nicht nur Erics geniales Urknall-Experiment in Gefahr – zu allem Übel wird er auch noch von Professor Zuzubin bedroht!

Climate is an informative introduction to the subject of climate change. Written in a clear, accessible manner, this book addresses how people must use energy more efficiently, develop alternative energy sources, and lower emissions technologies.