Viewing profile — parametrek

Everything he wrote about that was wrong. I was never accepted into the original Proposition. I did not get any money or advice. But my elevator pitch was good enough to convince m…

> just serve them locally in a sufficient format and you'll slip through blocks. In what universe do you live? Every little forum that self-hosts ads is already in the blocklists.

> The lead-acid grid lattice design, still the...errr...gold standard when it comes to the most amount of joules stored per buck, was invented in 1881. Li-ion has caught up. If you…

Those are still pretty spammy and often full of misinformation. Wirecutter's flashlight recommendations have always been terrible and so I have no faith in them at all.

Hi! To expand on #20 there is a lot of stuff going on but like you said most of it is SEO spam. It is further hampered by planned obsolescence and the increasingly fast pace that n…

LiFePO4 is my favorite.

There are plenty of other lithium ion chemistries that use no cobalt. If push comes to shove we use them instead. I already use LiFePO4 everywhere I can.

Depends on the li-ion. There are chemistries out there right now that are good for 20,000 cycles like LTO. And a substantial amount of li-ion research is extending cycle life. It d…

> HN readers are not the typical consumer. I guess the majority here will buy after making a comparative table You are not kidding. That's how this was born: http://flashlights.par…

Channel your obsession! I'm the same way and it grew into the most comprehensive database of flashlights around: http://flashlights.parametrek.com

Technology hasn't kept up with that line. Here are 18650 cells on the market, sorted by Wh/kg: http://batteries.parametrek.com/index.html?size=18650&wh_kg=... The best are still on…

Have you done something clever or creative for Net Neutrality Day? Let's share those here. Personally I've re-compressed the jpegs on my site at quality level 1 and threw a banner …

> could you apply the same recipe for a comparison site to anything else with a numeric bang per buck quantifier Absolutely. I've done this with flashlights, for example.

This is good work! I might reference your project in an article I've been writing about responsible affiliate sites.

Ooops, thanks!

While that is extremely light, it still weighs as much as 3x18650. Breakeven point would be after four days of perfect 100% utilization of solar power. Is it practical even then? I…

Your efficiency calculation is wrong. It isn't 25% of 300Wh, 300Wh is the output. The input is 400Wh, with 25% loss or 100Wh. Not 75Wh as you have. And you have a bunch of other mi…

Not practical though. Every time someone has done the math for a fully scaled up system (assuming magic technology that doesn't exist) it always has the same answer: Unless the pow…

They aren't worth the money or the weight. You are almost always better off bringing the equivalent in spare rechargeable batteries. I've written an article on it: https://www.redd…

Find a product that you like owning but have difficulty buying. Identify and fix those pain points.

No, parasitic is accurate for most affiliate sites. The majority are content mills who are better at SEO than the retailers. People google "best foobarbaz" when doing christmas sho…

I've mentioned this before [1] but affiliate sites work, particularly if you are already doing web dev. [1] https://news.ycombinator.com/item?id=14473272

Thanks. The pricing is the easiest part. As an affiliate you get access to an API that lets you query it. Of course it is heavily rate limited and sometimes fails outright. Accessi…

Web dev? Affiliate links. Consider a consumer item you are passionate about. Walk through the typical shopping process, either as a newb or as an enthusiast. Identify all the pain …