Plus: are we getting the real stuff in popular science?; a step-by-step guide to our solar systemĂ˘ÂÂs demise, this weekĂ˘ÂÂs Facts So Romantic; and more.
[View in browser]( | [Become a member]( Newsletter brought to you by: September 22, 2022 â Did a friend forward this? [Subscribe here](. Dear Nautilus Reader, YouĂ˘ÂÂve heard the question, perhaps even posed it yourself: Ă˘ÂÂIf the universe expands like a balloon, and all its galaxies are moving away from each other like little dots that mark up the rubbery surface, then [what is the universe expanding into?Ă˘ÂÂ]( Analogies are nice, but, like the will of an American toddler waiting to eat a marshmallow, they break down. The fact is, if you were in touch with the equations that describe cosmic expansion, the question of where that expansion goes doesnĂ˘ÂÂt ever come up. ItĂ˘ÂÂs not in the math. ThatĂ˘ÂÂs why theoretical physicist Sean Carroll penned his latest book, The Biggest Ideas in the Universe: Space, Time, and MotionĂ˘ÂÂto go beyond analogies. [To the real stuff]([.]( In our interview with Carroll, the physicist explains why his Ă˘ÂÂdream is to live in a world where most people have informed and passionate views about modern physics.Ă˘ÂÂ Plus, brilliant cartoonist and engineer Randall Munroe, creator of the webcomic xkcd, [enlightens us on how to shed 20 pounds](. Of course, you wonĂ˘ÂÂt want to try this at home. Also, astrophysicist Sean Raymond brings you a [deep solar system forecast](: What lies ahead for our little corner of the galaxy? And donĂ˘ÂÂt miss this weekĂ˘ÂÂs Facts So Romantic below. [READ NOW]( â [PHYSICS]( [Lose Weight the Slow and Incredibly Difficult Way]( Trying to answer a silly question can take you through some serious science. BY RANDALL MUNROE Ă˘ÂÂI want to lose 20 pounds. How much of the EarthĂ˘ÂÂs mass would I have to Ă˘ÂÂrelocateĂ˘ÂÂ to space in order to achieve my goal?Ă˘ÂÂ Ă˘ÂÂ Ryan Murphy, New Jersey [Continue reading Ă˘ÂÂ]( Experience the endless possibilities and deep human connections that science offers [SUBSCRIBE TODAY]( â [Make Lasting Changes to Your Health]( [Noom]( has a better approach to healthy living. In just 10 minutes a day, youĂ˘ÂÂll get daily psych-based lessons, guided coaching, and group accountability to help you as you make your way through your new health journey. [Create a new routine](Ă˘ÂÂthat doesnĂ˘ÂÂt stress you outĂ˘ÂÂso you can see long lasting results. [Learn More]( â Enjoying our newsletter? [Click here]( to keep hearing from us. Your clicks tell us you value receiving our newsletter. [Click this]( in the next 30 days to confirm youĂ˘ÂÂre an active Nautilus reader, and we wonĂ˘ÂÂt unsubscribe you. Thanks! [CLICK TO STAY SUBSCRIBED]( â [PHYSICS]( [Are We Getting the Real Stuff in Popular Science?]( When it comes to physics, says Sean Carroll, you need the math. BY KEVIN BERGER [Continue reading Ă˘ÂÂ]( â [ASTRONOMY]( [A Step-by-Step Guide to Our Solar SystemĂ˘ÂÂs Demise]( First the oceans boil off. Then things really get serious. BY SEAN RAYMOND [Continue reading Ă˘ÂÂ]( â [Ă˘ÂÂAt this point, youĂ˘ÂÂve removed 85 percent of the EarthĂ˘ÂÂs mass. But youĂ˘ÂÂve lost weight!Ă˘ÂÂ]( [Genius xkcd webcomic creator Randall Munroe brings serious physics to absurd questions.]( â FACTS SO ROMANTIC The Best Things We Learned Today [Earth has a built-in thermostat](, the carbonate-silicate cycle, which regulates the amount of carbon dioxide in the atmosphere and operates on about a million-year timescale.
[NautilusĂ˘ÂÂ]( â [Even if you slice away]( 20 kilometers of the EarthĂ˘ÂÂs crust across the whole surface, you still wouldnĂ˘ÂÂt lose any weight.
[NautilusĂ˘ÂÂ]( â [Einstein didnĂ˘ÂÂt know]( about the Big Bang, but his equation did.
[NautilusĂ˘ÂÂ]( â [How did evolution manage]( to do away with hierarchies based purely on who was the strongest? Ă˘ÂÂStones,Ă˘ÂÂ says paleontologist Juan Luis Arsuaga. Ă˘ÂÂWeĂ˘ÂÂre the only species capable of throwing objects with precision.Ă˘ÂÂ
[Life: As Told by Sapiens to a Neanderthal, by Juan JosĂÂŠ MillĂÂĄs & Juan Luis ArsuagaĂ˘ÂÂ]( â [The British scientist Humphry Davy]( made an offhand yet prophetic suggestion in his 1800 book on chemistry and philosophy that went ignored for decades: Ă˘ÂÂAs nitrous oxideĂ˘ÂÂŚappears capable of destroying physical pain, it may probably be used with advantage during surgical operations.Ă˘ÂÂ
[The Invention of Tomorrow, by Thomas Suddendorf, Jonathan Reshaw, & Adam BulleyĂ˘ÂÂ]( â More in Physics [How the Physics of Nothing Underlies Everything]( The key to understanding the origin and fate of the universe may be a more complete understanding of the vacuum. BY CHARLIE WOOD [Continue reading Ă˘ÂÂ]( [We Might Already Speak the Same Language As ET]( Alien communication could utilize quantum physics, so SETI needs a new way to listen. BY CALEB SCHARF [Continue reading Ă˘ÂÂ]( â TodayĂ˘ÂÂs newsletter was written by Brian Gallagher â COVER STORY [Under Anesthesia, Where Do Our Minds Go?]( General anesthesia redefined surgery and medicine, but over a century later it still carries significant risks. To better understand our brains and design safer anesthesia, scientists are turning to EEG. Read this story and others that showcase [Nautilus](' unique style of environmental journalism in Issue 45. [Join the discussion]( on the high price of cheap shrimp; the current status of the bees; and the political power of ecstatic sex. [Subscribe]( â [Facebook]( [Twitter]( [Instagram]( Copyright ĂÂŠ 2022 NautilusNext, All rights reserved.
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