Big Picture Science – Time Travel Agents

by Gary Niederhoff on October 16, 2016

Big Picture Science – Time Travel Agents

Hey, let’s meet last week for coffee. Okay, we can’t meet in the past … yet. But could it be only a matter of time before we can? In an attempt to defy the grandfather paradox, scientists try sending a photon back in time to destroy itself.

Also, find out how teleportation allows particles to instantaneously skip through space-time and why sending humans wouldn’t violate the laws of physics.

But before you pack your bags for that instantaneous trip to Paris, we need to understand the nature of time. A physicist offers a testable theory and ponders how it bears on free will.

Plus, feel as if time comes to a standstill when you’re standing in line? Tricks for altering your perception of time while you wait. Some businesses already use them on you.

Listen to individual segments here:
Part 1: Seth Lloyd / Teleportation
Part 2: Richard Muller / Physics of Time
Part 3: Emma Bentley / Queuing Up
Part 4: David Andrews / Line Time

{ 2 comments… read them below or add one }

avatar David Bates October 19, 2016 at 1:57 am

Thank you for another interesting big picture science episode. It did remind me of the sign I once saw or will see in a newsagents:

Time machine for sale
Can deliver yesterday

avatar Richard October 20, 2016 at 4:43 am

A little off-topic but Richard Muller is a person who wrote: “the hockey stick, the poster-child of the global warming community, turns out to be an artifact of poor mathematics…Misinformation can do real harm, because it distorts predictions.”
“How much of the [Global] warming is due to humans and what will be the likely effects? We made no independent assessment of that.”
I would suggest, we do not have a clue. yet would like to spend billions of dollars in economically destructive activity in a quixotic effort to stabilise global temperatures, which has so far led to more benefits than harm and moreover been far less than that predicted by the “settled science” of “Climate Change”. Normally in science when a hypothesis fails in its predictions it is discarded or modified, but in this case it seems to be impervious to the scientific method.

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