Posts tagged “science”

This terrific short story by qntm contemplates the hellish potential consequences of brain uploading, in the form of a typically impassive Wikipedia entry:

MMAcevedo (Mnemonic Map/Acevedo), also known as Miguel, is the earliest executable image of a human brain. It is a snapshot of the living brain of neurology graduate Miguel Álvarez Acevedo (2010–2073), taken by researchers at the Uplift Laboratory at the University of New Mexico on August 1, 2031.

Found this wonderful YouTube channel on Kottke.org. I have to admit I wasn’t expecting it to be so thought-provoking:

Our brains play tricks on us to make us believe the world looks one way, but the world looks different at night than in the day, and both of those things have more to do with the physiology of our eyes and brains than with objective reality. Asking what a microbe actually looks like is, to some extent, forcing our own experience onto something that is beyond it.

If, like me, you somehow recognize the narrator’s voice, that’s because it’s Hank Green (!).

CGP Grey’s take on Powers of Ten is very beautiful and evocative and terrifying.

Da Shiji (达史纪) reports on the the Chinese government’s handling of the Wuhan coronavirus outbreak, and the current situation in Wuhan:

Politics first. Stability preservation first. In such an environment, science can only sit by and watch. The scientific results could not be clearer, and the authorities likely had a decent grasp of the real situation. But nevertheless they could not speak the truth, and they spared no effort in keeping the outbreak under wraps. Front-line doctors who spoke up about the outbreak were taken in for questioning. Eight Wuhan citizens who dared to post about the outbreak online were summoned by the police and singled out in public announcements through official media in order to terrify the public and force people to remain quiet.

The focus of restrictions was to prevent the truth of human-to-human transmission of the coronavirus from getting out.

This is one of the most incredibly delightful and mindblowing Turns Outs.

Geoffrey James:

Neuroscience continues to uncover new ways that coffee and (to a lesser extent) tea and chocolate, tend to make brains healthier and more resilient.

When studies prove my habits are good, I believe them.

Nature has put together a comprehensive series of charts that do a really great job at showing just how fucked we are.

Whatever they decide, nations will have to reckon with some difficult numbers that will ultimately determine whether the world can avoid the rapidly approaching climate meltdown. Nature documents the scale of the challenge in an infographic that explores energy use, carbon dioxide pollution and issues of climate justice. At a time when countries have pledged to curb greenhouse gases sharply, the data show that annual emissions spiked by 2.1% in 2018 — owing in part to increased demand for coal in places such as China and India.

Veritasium:

This is a video I’ve long wanted to make, about what makes video look like video and, up until 10 years ago or so, not as appealing as film. I grew up with the two technologies (film and video) in parallel and to me they always seemed like two ways of achieving the same ends: recording and replaying moving images. But their histories are quite distinct. Film was always a way to capture moving images for later replaying. Video started out as a way to transfer images from one place to another instantaneously.

Timothy B. Lee:

In January 2016, Musk predicted that Tesla cars would be able to drive autonomously coast to coast “in ~2 years.”

Needless to say, this hasn’t happened.

More than a critique of Tesla, this article is a good roundup of current thinking around self-driving technology.

Katia Moskvitch:

Astronauts returning to Earth after a long stint in space are so badly disorientated that they usually can’t walk properly for 24 hours or longer. Turns out human brains function differently in space and when an astronaut gets back, it takes his or her brain some time to re-train itself. Now Marissa Rosenberg, a neuroscientist at Nasa, plans to use virtual reality headsets as a tool to short-cut the training.

David Ehrlich writes about the upcoming Apollo 11 documentary, made using recently discovered 65mm footage:

It’s rare that picture quality can inspire a physical reaction, but the opening moments of “Apollo 11,” in which a NASA camera crew roams around the base of the rocket and spies on some of the people who’ve come to gawk at it from a beach across the water, are vivid enough to melt away the screen that stands between them. The clarity takes your breath away, and it does so in the blink of an eye; your body will react to it before your brain has time to process why, after a lifetime of casual interest, you’re suddenly overcome by the sheer enormity of what it meant to leave the Earth and land somewhere else.

This looks absolutely incredible.

A remarkable visualization of emergence at work. The close-up shots of the circulatory system look straight out of a trippy sci-fi horror film.

The human factor of keeping a science project going for 500 years seems a lot more complicated than the actual science:

Opening vials, adding water, and counting colonies that grow from rehydrated bacteria is easy. The hard part is ensuring someone will continue doing this on schedule well into the future. The team left a USB stick with instructions, which Möller realizes is far from adequate, given how quickly digital technology becomes obsolete. They also left a hard copy, on paper. “But think about 500-year-old paper,” he says, how it would yellow and crumble. “Should we carve it in stone? Do we have to carve it in a metal plate?” But what if someone who cannot read the writing comes along and decides to take the metal plate as a cool, shiny relic, as tomb raiders once did when looting ancient tombs?

The Economist reports on a recently published astronomy paper:

Dr Tarter reckoned that decades of searching had amounted to the equivalent of dipping a drinking glass into Earth’s oceans at random to see if it contained a fish.

Once the numbers had been crunched, the researchers reckoned humanity has done slightly better than Dr Tarter suggested. Rather than dipping a drinking glass into the ocean, they say, astronomers have dunked a bathtub.

Huh. I wonder if that really is an apt comparison.

Devin Coldewey:

A machine learning agent intended to transform aerial images into street maps and back was found to be cheating by hiding information it would need later in “a nearly imperceptible, high-frequency signal.” Clever girl!

But in fact this occurrence, far from illustrating some kind of malign intelligence inherent to AI, simply reveals a problem with computers that has existed since they were invented: they do exactly what you tell them to do.

Great reporting from Reuters:

As waters warm, fish and other sea life are migrating poleward, seeking to maintain the even temperatures they need to thrive and breed. The number of creatures involved in this massive diaspora may well dwarf any climate impacts yet seen on land.