Tag Archives: Physics

Physics explains why time passes faster as you age

by Ephrat Livni, Quartz

Mind time and clock time are two totally different things. They flow at varying rates.

The chronological passage of the hours, days, and years on clocks and calendars is a steady, measurable phenomenon. Yet our perception of time shifts constantly, depending on the activities we’re engaged in, our age, and even how much rest we get. An upcoming paper in the journal European Review by Duke University mechanical engineering professor Adrian Bejan, explains the physics behind changing senses of time and reveals why the years seem to fly by the older we get.  (The paper, sent to Quartz by its author, has been peer-reviewed, edited, and has been approved for publication but a date has not yet been set.)

Continue reading Physics explains why time passes faster as you age

Scientists Just Melted a Solid Below Its Freezing Point

by Ryan F. Mandelbaum, Gizmodo

Imagine you are standing in a freezer.

You look at an ice cube. “Ah, a solid, yes, this makes a lot of sense to me,” you think. But suddenly, it begins to melt. “Did someone turn up the temperature?” No. The laws of physics you remember from high school tell you this is impossible. You lose your goddamned mind. Continue reading Scientists Just Melted a Solid Below Its Freezing Point

Even Physicists Find the Multiverse Faintly Disturbing

by Tasneem Zehra Husain, Nautilus: Cosmos

It’s not the immensity or even the inscrutability, but that it reduces physical law to happenstance

How do you feel about the multiverse?” The question was not out of place in our impromptu dinner-table lecture, yet it caught me completely off-guard. It’s not that I’ve never been asked about the multiverse before, but explaining a theoretical construct is quite different to saying how you feel about it. I can put forth all the standard arguments and list the intellectual knots a multiverse would untangle; I can sail through the facts and technicalities, but I stumble over the implications. Continue reading Even Physicists Find the Multiverse Faintly Disturbing

Physics Doesn’t Care Who Was Elected President

by Brian Kahn, Scientific American

Eight worrisome climate patterns are well underway, regardless of politics

Donald Trump has said climate change is a Chinese hoax. His presidency raises the prospect of a climate denier atop the Environmental Protection Agency and an oil and gas billionaire running the Energy Department. He could pull the U.S.—and its 15 percent of all global carbon emissions—out of the Paris Agreement.

This information has made his supporters happy and his detractors furious. This information also matters not one iota to the climate. Continue reading Physics Doesn’t Care Who Was Elected President