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Technology / Car fuel economy
« Last post by Petrochemicals on Yesterday at 19:50:31 »Today the motor is averaging 52mpg, this is city driving, traffic lights, junctions, etc. Only a week ago it was averaging 44mpg for the same type of driving. The numbers are via the cars display?
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General Science / Re: A Question About Solar Time.
« Last post by Halc on Yesterday at 19:44:40 »Is it because the earth spins faster when it is closer to the Sun?The sidereal spin rate (23:56:04) is fixed* to an awful lot of digits, but it is indeed due to Earth distance from sun.
The effect is so great on planets with high eccentricity like Mercury that the sun actually stops in the sky and goes backwards for quite a while every 'day'. Where it does this in the sky depends on where you are on the planet, but it's the same place each time.
When the sun is close, the Earth needs to rotate more degrees to get the sun back beyond the horizon, and that lengthens the day. The sun also moves faster relative to Earth, and that shortens the day, but not as much as the former effect lengthens it.
* The sidereal spin rate slows over very long times, due to tidal drag. The day used to be 10 hours or less, and will be again if the sun doesn't swallow Earth first, but it will.
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New Theories / Re: How do we measure the energy of a photon?
« Last post by Bored chemist on Yesterday at 18:28:22 »As discussed in this post, it is not possible to directly measure the energy of a single photon.What is so special about doing it "directly?
We can, in fact, measure the energies of photons.
Doesn't a carbon atom contain a positive nucleus and isn't a positive nucleus an ion?Yes and no respectively.
An ion has a net charge; a carbon atom doesn't.
In its 2D form in 4dAbstractions, an Amino Acid has a central Carbon Atom/A molecule of phenylalanine has 9 carbon atoms.
Which one are you pretending is "central"?
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New Theories / Re: An essay in futility, too long to read :)
« Last post by yor_on on Yesterday at 17:53:44 »Not that we in the EU is much better, looking at NATO
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New Theories / Re: An essay in futility, too long to read :)
« Last post by yor_on on Yesterday at 17:53:08 »Two catastrophes getting voted upon by USA, in a near future.
It tells you something, doesn't it
It tells you something, doesn't it
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New Theories / Re: An essay in futility, too long to read :)
« Last post by yor_on on Yesterday at 17:51:27 »Narratives
" Joe Biden has said he strongly supports a proposal from the Republican House speaker, Mike Johnson, to at last navigate $61bn in aid for Ukraine through the US Congress. "The House must pass the package this week, and the Senate should quickly follow," said the US president. "I will sign this into law immediately to send a message to the world: we stand with our friends, and we won't let Iran or Russia succeed." An additional proposal is expected to include measures to redirect seized Russian assets toward Ukraine."
And not a word about Gaza
https://www.theguardian.com/world/2024/apr/18/ukraine-war-briefing-dont-stockpile-your-patriots-put-ukrainian-needs-first-allies-told
" Joe Biden has said he strongly supports a proposal from the Republican House speaker, Mike Johnson, to at last navigate $61bn in aid for Ukraine through the US Congress. "The House must pass the package this week, and the Senate should quickly follow," said the US president. "I will sign this into law immediately to send a message to the world: we stand with our friends, and we won't let Iran or Russia succeed." An additional proposal is expected to include measures to redirect seized Russian assets toward Ukraine."
And not a word about Gaza
https://www.theguardian.com/world/2024/apr/18/ukraine-war-briefing-dont-stockpile-your-patriots-put-ukrainian-needs-first-allies-told
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General Science / A Question About Solar Time.
« Last post by Jimbee on Yesterday at 17:40:22 »About twenty years ago I was thinking of getting a sundial for my backyard.
To set a sundial, you need an almanac. I used The Old Farmer's Almanac. I noticed something interesting. Each solar day is a couple minutes faster or slower than one before and after. This is called sunfast.
Why is that? Is it because the earth spins faster when it is closer to the Sun?
To set a sundial, you need an almanac. I used The Old Farmer's Almanac. I noticed something interesting. Each solar day is a couple minutes faster or slower than one before and after. This is called sunfast.
Why is that? Is it because the earth spins faster when it is closer to the Sun?
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New Theories / Re: An essay in futility, too long to read :)
« Last post by yor_on on Yesterday at 17:34:09 »Which one is it?
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New Theories / Re: An essay in futility, too long to read :)
« Last post by yor_on on Yesterday at 17:33:18 »Well, assuming you think you have an democracy that is? Otherwise, yes, they are here to lord you.