陳軍翰

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This massive space telescope will revolutionize astronomy

NASA's massive James Webb Space Telescope will do nothing less than usher in a revolutionary era of astronomy.<p>The giant telescope is still being …

Universe

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What Are Gravitational Waves, and Why Should You Care?

<b>The short answer:</b><p>Gravitational waves are an important prediction of Einstein's general theory of relativity, published a century ago. Because this theory changed the way we understand the nature of space, time, and gravity, it also fundamentally changed our perception of how we fit into the …

These 4 Cosmic Phenomena Travel Faster Than The Speed of Light

Breaking the light barrier.<p>When Albert Einstein first predicted that light travels the same speed everywhere in our Universe, he essentially stamped …

Atoms Reach Record Temperature, Colder than Absolute Zero

Absolute zero is often thought to be the coldest temperature possible. But now researchers show they can achieve even lower temperatures for a …

Germany is about to start up a monster machine that could revolutionize the way we use energy

And they're still dreaming.<p>But thanks to the efforts of the Max Planck Institute for Plasma Physics, experts hope that might soon change.<p>Last year, after 1.1 million construction hours, the institute completed the world's largest nuclear-fusion machine of its kind, called a stellarator.<p>The machine, …

Meet The Physicist Building A Time Machine To See His Dead Father

"Back to the Future" is one of his favorite films.<p>This is an important day for Ronald L. Mallett, a retired professor of theoretical physics at the University of Connecticut who is trying to invent a machine that will allow him to travel back in time to reunite with his dead father. Of course, this …

Physics

Viewpoint: Sky Survey Casts Light on the Dark Universe

Author(s): Catherine HeymansThe Dark Energy Survey has generated a map of invisible dark matter by observing tiny gravitationally induced distortions …

Dark Universe

Nature's hadron collider produces Higgs bosons all the time

Cosmic rays provide a free source of high-energy collisions, which have been used in the past to discover new particles. A recent study calculates how often they produce Higgs bosons<p>On Wednesday the whole of year six from my daughter’s primary school came to visit UCL. They saw the Slade School of …

Physics

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如何成為一個通曉多種程式語言的工程師? | TechOrange

These giant telescopes are going to change astronomy

A new wave of truly gigantic telescopes is under construction, and will give astronomers the ability to learn more about our universe than ever before.<p>This chart shows how a trio of telescopes set to open in the 2020s (the European Extremely Large Telescope in Chile, the Thirty Meter Telescope in …

More Quantum Weirdness

Science news outlets are reporting:“It proves that measurement is everything. At the quantum level, reality does not exist if you are not looking at …

Quantum Mechanics

Reality Doesn’t Exist Until We Measure It, Quantum Experiment Confirms

Mind = blown.<p>Australian scientists have recreated a famous experiment and confirmed quantum physics's bizarre predictions about the nature of …

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I want to be an astronomer. What will my salary be?

<b>Job</b>: Astronomer<p><b>The role:</b> Astronomers dedicate much of their careers to the study of celestial objects, such as stars, planets, moons, asteroids, comets, galaxies and nebula. While research is often considered their primary function, astronomers have a variety of other responsibilities as well, …

Meet the Newest State of Matter

Jahn–Teller metals offer new hope for high-temperature superconductivity.<p>It's only slightly less exciting than it sounds: a new state of matter. The discovery, which comes courtesy of an international team led by Kosmas Prassides of Tokohu University in Japan, offers a novel material with an …

Breakthroughs

How It Works: Death By Black Hole

A quantum quandary<p>As you fall feet first across an event horizon—the point where nothing can escape the black hole’s gravitational pull—you don’t feel anything change. But eventually, gravity is so much stronger at your feet than your head that you’re stretched apart, like Play-Doh, until you snap. …

Quantum Mechanics

【材料科技】讓穿戴裝置不用再充電

• Wanchul Seung, Manoj Kumar Gupta, Keun Young Lee, Kyung-Sik Shin, Ju-Hyuck Lee, Tae Yun Kim, Sanghyun Kim, Jianjian Lin, Jung Ho Kim, Sang-Woo Kim.<b>Nan</b> …

Could Black Holes Destroy the Universe?

Before you say “no way,” hear the latest research out.<p>One of the surprises that the LHC had in stock for us is that the Higgs turned out to be …

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【化學反應】鹼金屬(alkali metals)是如何「著火」的?

<b>撰文|</b>葉綠舒<p>大家對鹼金屬(alkali metals),包含了鋰(元素符號Li)、鈉(Na)、鉀(K)、銣(Rb)、銫(Cs)、鍅(Fr),遇水會「著火」應該都不陌生,有些甚至會爆炸。您甚至可能還看過這個影片:鈉與鉀只是產生猛烈的燃燒反應,但是銣與銫會產生大爆炸!<p>但是,究竟鹼金屬是如何「著火」或爆炸 …

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