parametrek

7 ms·

1.
by parametrek 7y ago
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 me to go through with it anyway. And I'm hardly &quot
2.
Show HN: The largest camping sleeping pad database in the world(pads.parametrek.com)
2 points by parametrek 8y ago|0 comments
3.
by parametrek 8y ago
> 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.
4.
by parametrek 8y ago
> 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 have $400 to spend on batteries both li-ion [1] and c
5.
by parametrek 9y ago
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.
6.
by parametrek 9y ago
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 new products are released at. It is very difficult and expe
7.
by parametrek 9y ago
LiFePO4 is my favorite.
8.
by parametrek 9y ago
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.
9.
by parametrek 9y ago
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 doesn't matter how good hydrogen becomes. Battery tec
10.
by parametrek 9y ago
> 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.parametrek.com
11.
by parametrek 9y ago
Channel your obsession! I'm the same way and it grew into the most comprehensive database of flashlights around: http://flashlights.parametrek.com
12.
by parametrek 9y ago
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 only 276 Wh/kg, no where
13.
What are you doing for Net Neutrality Day?
4 points by parametrek 9y ago|4 comments
14.
by parametrek 9y ago
> 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.
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by parametrek 9y ago
This is good work! I might reference your project in an article I've been writing about responsible affiliate sites.
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by parametrek 9y ago
Ooops, thanks!
17.
by parametrek 9y ago
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'd gladly carry a few extra batteries so that I don&#
18.
by parametrek 9y ago
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 mistakes too. Along the length of the road, that is
19.
by parametrek 9y ago
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 power transfer system is nearly 100% efficient, using it
20.
by parametrek 9y ago
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.reddit.com/r/flashlight/wi
21.
by parametrek 9y ago
Find a product that you like owning but have difficulty buying. Identify and fix those pain points.
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by parametrek 9y ago
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 shopping and end up at an affiliate content mill.
23.
by parametrek 9y ago
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
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by parametrek 9y ago
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. Accessing certain parts of the API comes with strings attached t
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by parametrek 9y ago
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 points, every bit of friction. Consider everything you&#
26.
by parametrek 9y ago
Amazon affiliate links. (Yeah, yeah, I need to diversify. Ain't easy making opportunities.) It works well if your site is designed to improve the shopping experience.
27.
by parametrek 9y ago
> guarantee Of course that is not possible. At best you can grade someone's past behavior according to a set of criteria. Though in this case most of https://reddit.com/r/flashlight/ would probably say t
28.
by parametrek 10y ago
> The other day, I wanted a super bright flashlight that ran on AAA batteries and was of decent quality and price. I had to pour over the millions of listed flashlights, most looking physically identical, with the exception of the brand
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by parametrek 10y ago
Or you can design it to be light and fast from day 1. I had no trouble with the same level of traffic during a ShowHN on a $5 droplet.
30.
by parametrek 12y ago
'Always show checkboxes' was something I tried early on. It simply doesn't scale well. There are already more than 200 checkboxes and 10 double-ended sliders. Each single checkbox presented is the most important feature for

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