was mich tatsächlich am massivsten stört an facebook ist die intransparent. es ist nicht klar, nach welchen ideologischen richtlinien da inhalte gepusht werden. teilweise habe ich klar den eindruck dass da narrative gefördert werden, aber es ist alles völlig intransparent und man hat keinen weg vorherzusehen, wie sich die eigenen inhalte entwickeln werden.

es braucht dringend klarere und sichtbarere algorithmen die die inhalt auswählen die uns angezeigt werden. es kann nicht sein dass wir nicht wissen was wir fressen.

it’s very well comprehensible if you’re good with numbers.

an LED bright enough to lit up your room clearly has maybe around 30 watts, so that’s less than 1 kWh if you operate it all day. i assume a small LED (status indication LED) consumes maybe less than 1 W? So that would be 0,03 kWh per day, or about 6 g of sugar. I assume plants would be at a similar energy level, maybe even dimmer?

i think that it would be a faint glow, probably not enough to do as a sole light source, but still nice feeling.

this reminds me of the rocket that ULA (boeing and lockheed marteen) claimed to build for the US Nasa … which just ran comically over budget again and again. since it was a cost-plus contract, which means the US keeps paying them until the product is finished, it was just a free money pipe for them. they never intended to deliver anything worthwhile.

did you know that if you’re opposed to gay marriage, you can just say “No.” when they propose to you?

Verbessungsmöglichkeiten bieten sich da hauptsächlich noch auf Bundesebene

was z.b. denkst du sollte konkret geschehen? was nicht schon gemacht wird

thank you!

haha :)

but it’s also about price. do i buy the 200g package at 2,50€ or the 350g package at 4,20€?

having things broken down to “per 100g” helps me with that.

remember that flock cameras can be seriously impaired with a little spray paint

why are they called authoritarian? what books did they write?

was it on some nightcore music video?

apparently. “natural uranium” refers to uranium with about 3% U235 content meanwhile the remaining 97% are U238, i think.

edit:

ah i had the numbers somewhat off apparently.

debt-to-gdp crisis

is not an actual crisis, money on those political levels doesn’t work the same way as it would for households.

did you calculate how much gram of CO2 that is per kWh actually?

CANDU 9

very interesting. for those who want to know how it works:

Most commercial reactor designs use normal water as the moderator. Water absorbs some of the neutrons, enough that it is not possible to keep the reaction going in natural uranium. CANDU replaces this “light” water with heavy water. Heavy water’s extra neutron decreases its ability to absorb excess neutrons, resulting in a better neutron economy. This allows CANDU to run on unenriched natural uranium, or uranium mixed with a wide variety of other materials such as plutonium and thorium. This was a major goal of the CANDU design; by operating on natural uranium the cost of enrichment is removed. This also presents an advantage in nuclear proliferation terms, as there is no need for enrichment facilities, which might also be used for weapons.

From Wikipedia. So the key is to improve the neutron economy sothat there’s more neutrons available; then, these extra neutrons can go on to split extra material, which is thereby consumed.

better yet: pour it into concrete, dump it in the ocean.

it’s just not done yet because people are thinking that there might be another use case for nuclear waste in the future.

yeah and until recently they imported all their uranium from states like niger which is why it took till 2023 for niger to kick out the last french troops from its country.

which is interesting because solar became the cheapest form of electricity in 2020 and france let go of niger shortly after that.

How dependent is France on Niger’s uranium?

The military coup in Niger has raised concerns about uranium mining in the country by the French group Orano, and the consequences for France’s energy independence.

FYI 1 kg battery when fully discharged loses about 10⁻¹² kg of its rest mass …

yeah it’s pretty crazy how much energy is in fuel.

1 kg of oil contains about 30 MJ of energy. enough to accelerate an object of the same mass to 7.7 km/s. which is almost escape velocity on earth (11.2 km/s), or enough velocity to shoot the object out of earth’s gravity field altogether.

(a kg of oil, ofc, costs about $1)