Sunday, November 19, 2017

new book: Artemis by the author of Martian

A great interview with the author of the book MartianAndy Weir about his new book Artemis.

Triangulation 322 Andy Weir

This time is a happening in a city on the Moon called Artemis, that consists of five very large spheres, whose upper parts are visible from outside as domes.

A sphere is an optimal shape to get maximum volume / surface ratio, also optimal strength and cost. Such spherical buildings would be efficient on the Earth, too. Maybe also for covered swimming pools :)

Amazon.com: Artemis: A Novel eBook: Andy Weir: Kindle Store

Who was Artemis?
"Artemis (/ˈɑːrtɪmɪs/ was one of the most widely venerated of the Ancient Greek deities. 
... Artemis was often described as the daughter of Zeus and Leto, and the twin sister of Apollo.

So name Artemis for a city on the Moon makes sense as twin of NASA's Project Apollo for going to the Moon. 

Spheres are named based as Apollo program astronauts that first visited the Moon.

How Andy Weir Scienced the Lunar Colony in His New Book Artemis | WIRED

Making a Moon Base With 'Artemis' Author Andy Weir @Space.com
"... the moon as the ultimate tourist destination..."


"A map of the moon base Artemis from Andy Weir's new novel of the same name shows the five main domes, each with their own purpose: "Armstrong is industry, Aldrin is the tourist center with casinos and hotels and stuff, Conrad is where the blue-collar folks live, the low-income people. Bean is sort of like suburban life; it's middle-income folks. And then Shepard is where the really rich people live..."

Andy Weir's 'Artemis' Is a Fun Romp Through a Fictional Future Moon Colony

How Moon Bases and Lunar Colonies Work (Infographic)


The moon's first city will be a tourist economy, says author Andy Weir - Business Insider
"When Weir (spoiler-free) laying out the economics behind his fictional moon city.
Here's why he thinks lunar vacations just might make the first permanent lunar colony a reality."



network speed: TCP BBR

Google Cloud Platform Blog: TCP BBR congestion control comes to GCP – your Internet just got faster

"BBR powers TCP traffic from google.com and that improved YouTube network throughput by 4 percent on average globally — and by more than 14 percent in some countries.
...
According to Google’s tests, BBR's throughput can reach as much as 2,700x higher than today's best loss-based congestion control; queueing delays can be 25x lower. "


BBR ("Bottleneck Bandwidth and Round-trip propagation time") is a new congestion control algorithm developed at Google. Congestion control algorithms — running inside every computer, phone or tablet connected to a network — that decide how fast to send data.

How does a congestion control algorithm make this decision? The internet has largely used loss-based congestion control since the late 1980s, relying only on indications of lost packets as the signal to slow down. This worked well for many years, because internet switches’ and routers’ small buffers were well-matched to the low bandwidth of internet links. As a result, buffers tended to fill up and drop excess packets right at the moment when senders had really begun sending data too fast.

But loss-based congestion control is problematic in today's diverse networks"


JavaScript speed on mobile

Looks like the fastest device, not just smartphone, for web JavaScript is iPhone.

The Cost Of JavaScript – Dev Channel – Medium



WebPagetest - Website Performance and Optimization Test