Ho "dormito"¹ per meno di 3 ore, ma va tutto bene
Uncategorized
1
Posts
1
Posters
0
Views
-
Ho "dormito"¹ per meno di 3 ore, ma va tutto bene.
Le persone che dicono che è perché fumo troppo potrebero rendersi utili al pianeta e compostarsi.
¹ girato nel letto
-
undefined oblomov@sociale.network shared this topic on
Gli ultimi otto messaggi ricevuti dalla Federazione
-
@Chigaze that seems like a big thing.
-
Still validating CLI option relationships with if statements? Your type system can do it for you.
-
ActivityPubに問題があるというのは概ね共通認識とは思うけど、じゃあそれを改善したものを作ろうというと歓迎されない
-
Got to the country and I had set a fire in the fireplace before I left. Lit it up and it was blazing in minutes. Good, because the rest of the house is at 5C!
-
An Animated History of Cheese: 10,000 Years in Under Six Minutes
-
MagQuest: Measuring Earth’s Magnetic Field with Space-Based Quantum Sensors
Recently the MagQuest competition on improving the measuring of the Earth’s magnetic field announced that the contestants in the final phase have now moved on to launching their satellites within the near future. The goal here is to create a much improved World Magnetic Model (WMM), which is used by the World Geodetic System (WGS). The WGS is an integral part of cartography, geodesy and satellite-based navigation, which includes every sat nav, smartphone and similar with built-in GNSS capabilities.
Although in this age of sat navs and similar it can seem quaint to see anyone bother with using the Earth’s magnetic field with a compass, there is a very good reason why e.g. your Android smartphone has an API for estimating the Earth’s magnetic field at the current location. After your sat nav or smartphone uses its magnetometer, the measurements are then corrected so that ‘north’ really is ‘north’. Since this uses the WMM, it’s pertinent that this model is kept as up to date as possible, with serious shifts in 2019 necessitating an early update outside of the usual five-year cycle.
Goal of the MagQuest competition is thus to find a method that enables much faster, even real-time updates. The three candidate satellites feature three different types of magnetometers: a scalar-vector magnetometer (COSMO), a nitrogen-vacancy (NV) quantum sensor, and the Io-1 satellite containing both a vector fluxgate and atomic scalar magnetometer.
The NV quantum magnetometer is quite possibly the most interesting one, featuring a new, quantum-level approach for magnetic sensing. This effectively uses a flaw in a diamond’s carbon matrix to create a quantum spin state that interacts with magnetic fields and can subsequently be read out. The advantage of this method is its extreme sensitivity, which makes it an interesting sensor for many other applications where measuring the Earth’s magnetic field is essential.
-
Tesla Barely Beats Jeep for Least Reliable Used Car, Owner Survey Says
Consumer Reports' latest used-car reliability leaderboard has some surprises
https://www.thedrive.com/news/tesla-barely-beats-jeep-for-least-reliable-used-car-owner-survey-says
😬
-
@YoSoyFreeman also I think the average shadertoy poster would be surprised to discover that their work is CC-BY-NC-SA. I assumed the default was all rights reserved until I dug for it just now.
