Arbor Day! Trees ftw!
Arbor Day! Trees ftw!
First suggestion:
Women are the most vulnerable in the world and the most vulnerable are the most affected by the disease and the most likely to be affected by it is the people who are affected by it
Middle suggestion:
Women are not allowed in this world anymore because of their own personal preferences
Or maybe a little from column A and a little from column B
Office Depot. They are still using IBM machines from the 90s with receipt printers the size of a shoebox.
My ex wife gifted me some herpes.
Fair enough, but reading the comments it appears your edit isn’t explicit enough, or people just read the headlines I guess.
Edit/update from 9to5google so this post does not spread what is apparently inaccurate information:
I know we are desperate for content here on Lemmy, and I can google hate circle jerk with the best of them, but maybe just delete the post if it is a complete clickbait lie… you could also reword the post as a fact check, ‘no, google isn’t injecting adds into maps.’
This seems like an interesting game, one of many that I wish was remastered for the switch.
Is this game any good? Anyone remember it more than vaguely?
And Dell said “Great, thanks, saved us a ton on severance packages and allowed us to replace our high paid tenured employees with hungry graduates who are prepared to work themselves to death for peanuts”
They will still be short staffed and overworked. The company isn’t outsourcing the drive through out of the kindness of their hearts in order to lighten the workload on the employees.
Is that what it takes to get two different desktop orientations using Linux?
You could use Windows 11 from Microsoft, it can do both landscape and portrait.
Copy paste top answer from the original question is below.
I find it refreshing that there are actually people out there who are smart and understand this stuff, when I am constantly surrounded by stupid people like myself.
For an exact calculation we need to address a few choices: (you can change them, the answer will not be tremendously affected)
- What is the receiver? Let’s assume a 70 m dish, like this one [CDSCC] in the Deep Space Network.
- [Voyager 1] can transmit at 2.3GHz or 8.4GHz. Let’s assume 8.4GHz, for better beam forming (but probably it can only use the lowest frequency at the highest power, so this could be too optimistic).
- Does “received” mean all photons hitting the antenna dish, or only those entering the electronic circuit of the first LNA? A similar question can be asked for the transmitter in the space craft. We’ll ignore this here since losses related to illuminators or Cassegrain construction will not even be one order of magnitude, insignificant compared with the rest. Answers:\
A) Voyager sends 160 bits/second with 23W. Using 8.3GHz this is 4⋅1024 photons per second, or 2.6⋅1022 per bit, because for frequency f the energy per photon is only Eϕ=ℏω=2πℏf=5.5⋅10−24J or 5.5 yJ (yoctojoule).
B) The beam forming by Voyager’s d=3.7mdish will direct them predominantly to Earth, with (πd/λ)2 antenna gain, but still, at the current distance of R=23.5 billion kilometers, this only results in 3.4⋅10−22 Watt per square meter reaching Earth, so a receiver with a D=70m dish will collect only 1.3 attowatt (1.3⋅10−18W), summarized by: Preceived=Ptransmit (πdλ)2 14πR2 πD24 Dividing by Eϕ we see that this power then still corresponds to c. 240000 photons per second, or 1500 photons per bit. If we assume f=2.3GHz this becomes 415 photons per bit. And if we introduce some realistic losses here and there perhaps only half of that.
C) (Although not asked in the question) how many photons per bit are needed? The [Shannon limit] C=Blog2(1+SN), relates bandwidth B, and S/N ratio to maximum channel capacity. It follows that with only thermal noise N=kTnoiseB, the required energy per bit is: Ebit=SC=kTnoise 2C/B−1C/B ⇒ limC≪B Ebit=kTnoiselog2, where C≪B is the so-called “ultimate” Shannon limit. With only the CMB (Tnoise=3K)we would then need 41yJ, or 41⋅10−24J, per bit. That’s only 7.5 photons at 8.3GHz. But additional atmospheric noise and circuit noise, even with a good cryogenic receiver, could easily raise Tnoise to about 10K and then we need 25photons per bit at 8.3GHz, and even 91 at 2.3GHz. So clearly there is not much margin.
Works so well that it is currently the republican front runner for the presidency badum boom
I showed this to my wife and she said ‘well that seems like an easy thing to beat; I could just make a turban that’s longer and bigger than that.’
Oh the cool people are long gone /s
Shutter island watches completely differently on the second watch, same with Primer, The usual suspects, and Moon (2009).
Ok someone must be watching me.