janci5243
Re:Time to sunburn
on Tuesday June 15, 2021 @01:07PM (#27518313)
This article seems to say that getting a base tan helps to get 3-4 SPF, so your time-to-sunburn increases up to 4 times. https://www.health.harvard.edu/blog/problem-tanning-myth-bas...
I would not rely on it overall tough.
Re:Time to sunburn
on Tuesday June 15, 2021 @01:02PM (#27518251)
This might be completely a common knowledge, but I just learned recently that SPF (the number on most sunscreen products) is actually a multiplier of the time you can spend in the sun without any protection
So having an SPF of 50 increases a time 50 fold, which really puts things into perspective. Never leave the house around lunchtime without sunscreen.
Deepnote Emerges from Stealth: With YC, Index, and Accel Leading Our Seed Round
Re:Launch HN: Carry (YC S19) – We Book Travel for You on Slack
on Tuesday July 02, 2019 @04:00PM (#20338882)
Kiwi.com is actually really good at this. You can select flexible departure and return date, flexible departure location (eg. list of airports or simply a radius around your home) or even find the cheapest dates if you wanna stay for 3-5 nights. The features of search are best I have ever seen.
Re:Ask HN: Resources for getting started with bare-metal coding?
on Sunday June 23, 2019 @01:41PM (#20257259)
I find this course at Cambridge to be a wonderful resource for bare metal programming on ARM (Raspberry PI): https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/os/i...
It starts off with booting a simple OS written in assembly from SD card, blinking LED and then continues to more advanced topics such as controlling the GPU/screen.
Re:Cloudflare CTO: “If we did [take on GitHub] what features would you...
on Thursday May 30, 2019 @04:25PM (#20055546)
One feature I would love is a global code search that has the quality of the repo (as measured by forks/stars/pagerank...) as a part of relevance ranking. A use case is simple: I have some library and I am not exactly sure how to use it, so I go into global code search and try to find usages of that method. First thing that comes would be some relevant code in a big context of a well engineered repository.
Re:Deepnote – Jupyter Alternative for Teams
on Wednesday May 29, 2019 @12:47PM (#20042428)
While this is interesting, there is a couple of existing alternatives. Most notable would probably be JupyterHub, which brings Jupyter notebooks (or JupyterLab) to groups of users. The collaboration there is not realtime and there is no conflict resolution (last write wins), but you can share resources and files with your colleagues. Deploying it is also not super hard.
Ask HN: How to performance test React webapps for rendering speed regressions?
As React webapps get large and start to contain a lot of complex components, they often do not perform well and manifest low FPS in browser. As a result, engineers add strategies such as memoization (React.memo, shouldComponentUpdate) to avoid unnecessary computation, however they logic is fragile to code changes.Is there a way to automatically test performance (maybe in terms of FPS) of React...