KaiOS - Wikipedia
KaiOS is a Linux-based mobile operating system that "merges the power of a smartphone with the affordability of a feature phone".[2
mobile  os  android  linux  arm  computers  KaiOS  firefox  FirefoxOS 
7 weeks ago
Robust De-anonymization of Large Sparse Datasets
algorithm  privacy  security  anonymous  netflix  pdf  paper 
7 weeks ago
Migrations: the sole scalable fix to tech debt.
The most interesting migration I ever participated in was Uber's migration from Puppet-managed services to a fully self-service provisioning model where any…
from instapaper
april 2018
High-altitude winds: The greatest source of concentrated energy on Earth
At any moment, the winds in high-altitude jet streams hold roughly 100 times more energy than all the electricity being consumed on Earth,
wind  power 
april 2018
SQLite4: Pluggable Storage Engine
"... once recommended writing a storage engine for sqlite as a way to learn about on-disk representation"
sqlite  database  storage  reference 
march 2018
6.830/6.814 Schedule and Readings
"has notes on building a relational database in Java"
database  java  db 
march 2018
6.824 Home Page: Spring 2018
"if you’re interested in writing a replicated, sharded key-value store, I really liked the assignments and notes from https://pdos.csail.mit.edu/6.824/"
via:kiran  datastore  database  db 
march 2018
"Water Resource Challenges and Opportunities
for Water Technology Innovation

December 2015

At present, the cost and energy intensities of desalinated water are prohibitive for most communities, and particularly high for seawater which is higher in salinity than brackish water.

ambitious target levels would stand at less than $0.50 spent in total cost, 1 kWhe of energy consumed, and less than 1 pound of carbon dioxide generated over the course of producing 1 cubic meter of water.

Achieving these targets would require approximately a 4-times improvement in cost, a 3-times reduction in electricity usage, and a 2-times reduction in carbon dioxide emissions over existing seawater desalination technologies to achieve cost-competitive pipe parity."
engineering  desalination 
march 2018
Megascale Desalination - MIT Technology Review
The new plant in Israel, called Sorek, was
produce 627,000 cubic meters of water daily
Built for the Israeli government by Israel Desalination Enterprises, or IDE Technologies, at a cost of around $500 million
uses a conventional desalination technology called reverse osmosis (RO)
engineering  water  desalination 
march 2018
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