Hacker News Reader

adamkingon Creatine raises brain energy levels and slows cognitive decline: study

Creatine is one of the few supplements I actually notice a difference if I quit taking. Happy to see it’s benefits extend to beyond performance in the gym.

adamkingon Data centers are transitioning from AC to DC

> no significant skin effect at 400Hz -> use speaker wire, lol

now run that unshielded wire 50 meters past racks of GPUs and enjoy your EMI

> The 400Hz distribution industry is massive; the entire aerospace industry runs on it

nothing in that catalog is rated for 100kW–1MW rack loads at 800Vrms

> 3 phase @ 400Hz is x6 = 2.4kHz... Your PSU is now 14 diodes and a ceramic cap

you still need an inverter-based UPS upstream, which is the exact conversion stage DC eliminates

> large voltage/current DC breakers are.. gnarly, and expensive. DC does not like to stop flowing

SiC solid-state DC breakers are shipping today from every major vendor

> DC-DC converters are great, but you're not going to beat a transformer in efficiency or reliability

wide-bandgap converters are at 95%+ with no moving parts

adamkingon Google closes deal to acquire Wiz

Rich!= smart

adamkingon Amazon tells employees to return to office five days a week

> Having to work in an office for $300k/year

More like $98k/year on average

adamkingon Tesla Recalls 2M Cars to Fix Autopilot Safety Flaws

My 2023 Chevy Bolt EUV does exactly this with SuperCruise, in layers. Look away from the road for a few seconds? Visible warning. Keep looking away? Audible warning. Still looking away? SuperCruise disables, slows the vehicle to a stop, and calls OnStar.

adamkingon The laptop that won't die

and no moving internal parts + mostly sealed from dust. I'll do the same with mine.

adamkingon Google has added ads on both its search page and Chrome://newtab

I'm not even sure the first part is. I logged into a Guest Account on my Mac and the default for 'New tabs open with:' is the 'Start Page', which is a blank page with history, bookmarks, frequently visited, etc.

adamkingon MacBook Pro 14-inch and MacBook Pro 16-inch

Add my vote as a satisfied user. The M1 Air is the best personal laptop I've ever used. The battery life is just impeccable, it has plenty of power for what I need, and I imagine the longevity of this thing will be great because of the lack of fan and entry points for dust.

adamkingon Big Oil methane emissions: ‘significant gap’ between reality and reporting

California also launching one soon.

https://www.reuters.com/business/sustainable-business/califo...

adamkingon Nobody Likes the “Idea Guy”

Scrum masters shouldn't be contributing ideas in terms of implementation or design unless they're also part of the dev team. They're there to facilitate. Product owners are probably more akin to "idea guys".

Edit: Even product owner is a bit of a stretch on my part. They're presenting user stories and requirements, which the dev team can pick and choose from the backlog (which, albeit, is prioritized by the product owner).

adamkingon Waymo Launches Its Self-Driving Armada

Waymo employees are still Googlers effectively. They ride the same buses, eat in the same cafeterias, go to the TGIF meetings, etc.

adamkingon GoboLinux: A distro that redefines the entire filesystem hierarchy

I use case-insensitive autocomplete (with zsh), and don't see myself switching back anytime soon.

adamkingon Workspaces for Mac 1.0

Looks cool! I'll check it out.

adamkingon Introducing Surface Laptop

adamking on Introducing Surface Laptop

I'm curious as well. There's little a child, let alone an adult, could that would result in a permaban.