Category: Hacker News

Home Hacker News
What happened to 3D midair plasma displays?
Post

What happened to 3D midair plasma displays?

Science fiction has promised us three-dimensional midair displays since at least the first Star Wars movie. We’ve seen a few holographic technologies that have come close; they rely on optical tricks of one sort or another to make it seem like you’re seeing an image hovering in front of you. There’s nothing wrong with such optical tricks (if

The 1871 Samuel Morse Statue (2014)
Post

The 1871 Samuel Morse Statue (2014)

photo by Alice Lum In 1825 portrait artist Samuel Finley Breese Morse was in Washington DC working on the portrait of Lafayette commissioned by the City of New York.  His work was interrupted by a horse messenger who delivered a letter from Morse’s father that read “Your dear wife is convalescent.”  As Morse scurried to

Firefox search update
Post

Firefox search update

Innovation and privacy go hand in hand here at Mozilla. To continue developing features and products that resonate with our users, we’re adopting a new approach to better understand how you engage with Firefox. Rest assured, the way we gather these insights will always put user privacy first. What’s new in Firefox’s approach to search

Silicon reverse engineering: The 8085’s undocumented flags (2013)
Post

Silicon reverse engineering: The 8085’s undocumented flags (2013)

The 8085 microprocessor has two undocumented status flags: V and K. These flags can be reverse-engineered by looking at the silicon of the chip, and their function turns out to be different from previous explanations. In addition, the implementation of these flags shows that they were deliberately implemented, which raises the question of why they

Learning from the Object-Oriented Mania
Post

Learning from the Object-Oriented Mania

Back when I started programming professionally, every expert and   every software engineering professor would swear by object-oriented programming. Resistance was futile. History had spoken: the future was object-oriented. It is hard to understate how  strong  the mania was. In education, we started calling textbooks and videos ‘learning objects ‘.  Educators would soon ‘combine learning

Artie (YC S23) Is Hiring a Chief of Staff in SF
Post

Artie (YC S23) Is Hiring a Chief of Staff in SF

Software that streams data from databases to warehouses in real-time Chief of Staff $125K - $175K Location San Francisco, CA, US Connect directly with founders of the best YC-funded startups. Apply to role › About the role We are a team of 5 based in San Francisco looking for a Chief of Staff! Our team is

Disinformation is on the rise. How does it work?
Post

Disinformation is on the rise. How does it work?

I n January 2024, in the run-up to elections in Taiwan, hundreds of video posts appeared on YouTube, Instagram, X and other social platforms entitled “The Secret History of Tsai Ing-wen”. News anchors, speaking English and Chinese, made a series of false claims about Ms Tsai, the outgoing president, and her ruling party. On election

Improperly trusting ContentProvider-provided filename
Post

Improperly trusting ContentProvider-provided filename

Stay organized with collections Save and categorize content based on your preferences. OWASP category: MASVS-CODE: Code Quality Overview FileProvider , a subclass of ContentProvider , is intended to provide a secure method for an application ("server application") to share files with another application ("client application"). However, if the client application does not properly handle the