seveneightn9ne's comments

seveneightn9ne | 7 years ago | on: Restoring natural forests is the best way to remove atmospheric carbon

Hm, I'd heard the Amazon consumes at least as much O2 as it produces; it's basically in equilibrium. Unfortunately I don't remember the source but it was something like Planet Earth.

I found a lot of sources quoting your 20% number, but it seems like that's not net produced O2 but rather gross.

I'd be interested if anyone can find a source that says either way about the net O2/CO2 of the Amazon.

seveneightn9ne | 7 years ago | on: Firefox Send: Free encrypted file transfer service

How is this using end-to-end encryption? It seems like the recipient just clicks a link to download. How can it have been encrypted for that person? end-to-end encryption normally means that there's no way for the intermediary to unencrypt the data but I can't see how that's possible in this case.

seveneightn9ne | 7 years ago | on: The U.S. Yield Curve Has Inverted

Investors want to buy long term bonds because they suspect the interest rates will get worse, so they want to lock in the current rate for a longer time. It signals that investors are expecting a recession.

seveneightn9ne | 7 years ago | on: Show HN: Crowdsourced Language Learning Site

There are a couple of features I feel are missing. 1) ability to filter by beginner/intermediate/advanced resources. 2) ability to rate & review resources and then sort by popularity/rating.

As it is I see a ton of resources for my target language, with no way to choose between them.

Nice work overall, this seems like a really useful idea especially for less popular languages!

seveneightn9ne | 8 years ago | on: Tesla Semi

Tesla's navigation system will definitely let you know if there's something close to your side.

seveneightn9ne | 8 years ago | on: Why ProtonMail is more secure than Gmail

You can totally search email contents with ProtonMail -- it just does it clientside. I just tested with my 125MB of emails and it was fast (under 1s) but maybe if you have more emails it could be slower.

seveneightn9ne | 8 years ago | on: Show HN: $200 Solar Self-Sufficiency  Without Your Landlord Noticing

That's at the bottom of the article:

Production footprint PV multicristalline: 4200kWhee/kW [1] * 0.1kW = 420kWh embodied energy

Production footprint lead-acid battery: 321kWhee/kWh [1] * 0.5kWh = 161kWh embodied energy

Total Footprint: 581kWh

Annual energy production system: 155kWh/y

Payback period: 581kWh / 155kWh/y = 4+ year footprint payback

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