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Blue light has a dark side
Light at night is bad for your health, and exposure to blue light emitted by electronics and energy-efficient lightbulbs may be especially so....
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 241 posts.
32
Facebook is not worth $33,000,000,000
Facebook is an amazing success as a social network. Anyone who can get 500 million people to connect, share photos, and click on little cows in Farmville deserves major kudos. But the bullshit monopoly-money valuation merry-go-round has to stop. It’s getting beyond ridiculous and when even…
33
Proof of Stake: How I Learned to Love Weak Subjectivity
<p>Proof of stake continues to be one of the most controversial discussions in the cryptocurrency space. Although the idea has many undeniable benefits,...
34
The CA's Role in Fighting Phishing and Malware
Since we announced Let’s Encrypt we’ve often been asked how we’ll ensure that we don’t issue certificates for phishing and malware sites. The concern most commonly expressed is that having valid HTTPS certificates helps these sites look more legitimate, making people more likely to trust them. Deciding what to do here…
35
Fighting spam with Haskell
Visit the post for more.
36
Show HN: Cloud Storage with ZFS send and receive over SSH
rsync.net offers secure cloud storage on an open standards ZFS and SSH platform for offsite backup and disaster recovery
37
Test iOS and Android Audio Latency with Superpowered Latency Test App
iOS and Android Audio Latency Test App with round-trip audio latency data for Apple, Samsung Galaxy, Xiaomi, LG, HTC, Nexus, Motorola, Sony, etc. devices.
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How To Create an SSH CA to Validate Hosts and Clients with Ubuntu
When dealing with an extensive infrastructure and many team members, managing SSH keys for authentication can become unwieldy. However, SSH can utilize cert…
40
Farming Hard Drives: How Backblaze Weathered the Thailand Drive Crisis
The rain started in August and by mid-October 2011, violent floods in Thailand had damaged the factories that helped produce nearly half of the world’s
41
Understanding Container Reuse in AWS Lambda
Tim Wagner, AWS Lambda AWS Lambda functions execute in a container (sandbox) that isolates them from other functions and provides the resources, such as memory, specified in the function’s configuration. In this article we discuss how Lambda creates and reuses these sandboxes, and the impact of those policies on the…
42
Deprecating Non-Secure HTTP
Today we are announcing our intent to phase out non-secure HTTP. There's pretty broad agreement that HTTPS is the way forward for the web. In recent months, there have been ...
43
Go GC: Prioritizing low latency and simplicity
Go 1.5 is the first step toward a new low-latency future for the Go garbage collector.
44
Bypassing the Linux kernel for high-performance packet filtering
In two previous posts we've discussed how to receive 1M UDP packets per second and how to reduce the round trip time. We did the experiments on Linux and the performance was very good considering it's a general purpose operating system.
45
Saying goodbye to encrypted SMS/MMS
It’s 2015, and the end of the road for encrypted SMS/MMS in TextSecure. The TextSecure story started back in 2009, at the dawn of the smartphone era. Back then, TextSecure focused on securing the transport that everyone coming from feature phones was familiar with: SMS. Today, many things have c...
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The Cost and Complexity of Cgo
Cgo is an important part of Go: It's your window to calling anything that anything that has C bindings. But while cgo works for us, it hasn’t come for free.
48
Average Household Electricity Consumption - 2026
We used data from EIA to get up-to-date average household electricity consumption. We compiled statistics to compare to other countries.
49
Rationality: From AI to Zombies
A series by Eliezer Yudkowsky
50
10 Usability Heuristics for User Interface Design
Jakob Nielsen's 10 principles for interaction design. They are called "heuristics" because they are broad rules of thumb and not specific usability guidelines.
51
Chapter 1: Beliefs About Sharia
According to the survey findings, most Muslims believe sharia is the revealed word of God rather than a body of law developed by men based on the word of God.…
52
Cleaner Cars from Cradle to Grave
Over their lifetime, battery electric vehicles produce far less global warming pollution than their gasoline counterparts—and they’re getting cleaner.
53
Schelling's Model of Segregation
Racial segregation has always been a pernicious social problem in the United States. Many factors have contributed to segregation including prejudice, zoning laws, housing discrimination, and loan discrimination. Although much effort has been extended to desegregate our schools, churches, and neighborhoods, the US…
54
Who makes minimum wage?
Perhaps surprisingly, not very many people earn minimum wage, and they make up a smaller share of the workforce than they used to.
55
Two HN Announcements
The HN community feels like it owns HN, and we like it that way. HN has become an important institution in the tech community, and though it was initially developed for YC founders it’s clearly evolved into much more than that. We’ve always felt that the best way for HN to benefit YC is simply for it to maximally…
56
China's Great Cannon
This post describes our analysis of an attack tool that we identify as separate from, but co-located with, the Great Firewall of China.
57
Why Every Movie Looks Sort of Orange and Blue
Maybe you haven't noticed, but just about every scene in every blockbuster movie has the same color scheme.
58
Startup Metrics
We have the privilege of meeting with thousands of entrepreneurs every year, and in the course of those discussions are presented with all kinds of numbers, measures, and metrics that illustrate the promise and health of a particular company. Sometimes, however, the metrics may not be the best gauge of what’s actually…
59
Making Elm faster and friendlier in 0.16
A delightful language with friendly error messages, great performance, small assets, and no runtime exceptions.
60
Project Panama: Interconnecting JVM and Native Code
We are improving and enriching the connections between the Java virtual machine and well-defined but “foreign” (non-Java) APIs, including many interfaces commonly used by C programmers.