Tag Archives: hotter

The mystery of why the Sun’s outer atmosphere is far hotter than its surface has long puzzled scientists. The solar corona reaches temperatures of over a million degrees Celsius, while the surface below barely tops 5,500°C. This heating happens despite the corona being further from the Sun’s core, where most of the energy is produced. At the same time, the …

The mystery of why the Sun’s outer atmosphere is far hotter than its surface has long puzzled scientists. The solar corona reaches temperatures of over a million degrees Celsius, while the surface below barely tops 5,500°C. This heating happens despite the corona being further from the Sun’s core, where most of the energy is produced. At the same time, the …

A team of scientists claims it has created the world’s hottest engine. The innovative engine runs at temperatures higher than the sun’s core. It is also made up of a tiny, microscopic particle suspended at a low pressure using electrical fields. Called a Paul Trap, the researchers can exponentially increase its heat by applying a noisy voltage to the electrodes …

Technically speaking, an engine is a device that converts some form of energy into mechanical energy. Taking that definition to heart, physicists harnessed the strange rules of microscopic physics and created the hottest engine ever—which also happens to be the smallest engine ever made. In a forthcoming paper for Physical Review Letters, researchers describe a tiny engine crammed inside a …

While some on Wall Street are worried about a recession, recent economic data show that GDP growth is actually speeding up faster than earlier numbers indicated. On Thursday, second-quarter growth was revised even higher, to 3.8% from a prior reading of 3.3%, on robust consumer spending. That’s after a first-quarter dip that was driven by President Donald Trump’s trade war. …

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If the sound of a baby crying gets you red in the face, you’re not just imagining things. A new study has found that an infant’s cries – particularly those that signal pain – really do trigger a hot flush in adults’ faces, perhaps as a way of launching us into action. Babies’ wailing is, in a sense, unbearable on …

Our sun’s fiery flares are even more extreme than scientists had thought, blasting particles to temperatures six times hotter than earlier estimates, according to new research. Solar flares are colossal explosions in the sun’s atmosphere that hurl out bursts of powerful radiation. These events are notorious for disrupting satellites, scrambling radio signals and potentially posing dangers to astronauts in space. …

The powerful belch of material ejected during a solar flare may be way hotter than scientists thought it was. A new mathematical analysis suggests that the engine driving solar flares is far more effective at heating charged particles, or ions, than it is at heating electrons. This could mean that we’ve been underestimating the Sun, since flare temperatures are estimated …

NASA’s Solar Dynamics Observatory, which watches the sun constantly, captured an image of a mid-level solar flare on Jan. 12, 2015. NASA/Goddard Space Flight Center/Solar Dynamics Observatory hide caption toggle caption NASA/Goddard Space Flight Center/Solar Dynamics Observatory Beautiful yet dangerous solar flares that erupt from the sun could be as hot as 180 million degrees Fahrenheit, researchers say. That’s more …