Recent comments in /f/askscience
[deleted] t1_jba086j wrote
BitsAndBobs304 OP t1_jba02ah wrote
Reply to comment by [deleted] in Does thin stuff placed between pan and induction cooker affect efficiency in a significant manner? by BitsAndBobs304
Haha okay ;)
[deleted] t1_jb9zzgb wrote
Reply to comment by BitsAndBobs304 in Does thin stuff placed between pan and induction cooker affect efficiency in a significant manner? by BitsAndBobs304
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[deleted] OP t1_jb9ziwx wrote
Reply to comment by mfb- in Do men and women actually breathe differently? by [deleted]
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BitsAndBobs304 OP t1_jb9zei5 wrote
Reply to comment by FantasticFunKarma in Does thin stuff placed between pan and induction cooker affect efficiency in a significant manner? by BitsAndBobs304
Do you have an idea of how big the effect is then? Below 0,1% efficiency decrease for a thin cotton kitchen rag?
[deleted] OP t1_jb9yzht wrote
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mfb- t1_jb9yclg wrote
Reply to comment by Astrokiwi in When humans next land on the moon, will our telescopes from Earth's surface be able to photograph the rocket on the moon's surface? by Nswl
Starship HLS is pretty white while the surface of the Moon is pretty dark. Landing near the pole will also mean it's at a nice angle relative to our line of sight. So maybe it's an elongated blob.
coren77 t1_jb9xyaf wrote
Reply to comment by formerlyanonymous_ in When humans next land on the moon, will our telescopes from Earth's surface be able to photograph the rocket on the moon's surface? by Nswl
Me too.... so I looked it up just to get a grasp on difference! From a purely diameter related measurement, the moon is ~2100 miles, while the earth is around 8000 miles in diameter. The US is around 2700 miles across depending on how you measure. However in actual square miles, the moon is MUCH more massive (sphere, yay!) than any one country on earth; the moon is around 14.6million square miles, wile the entire continent of asia is around 17.2million sq miles (largest country on earth, Russia, is "only" 6.6 million miles).
The More You Know!
mfb- t1_jb9xu14 wrote
Why don't you link the article so others here can understand what it was talking about?
[deleted] t1_jb9xo03 wrote
mfb- t1_jb9xmxg wrote
Reply to How do plutonium based atom bombs work? What chemical reactions happen that make them explode? by L0RD_E
The general concept is the same. You make a sphere, typically hollow, surrounded by chemical explosives designed to compress the sphere to become critical and add a neutron source that triggers at the time of maximal criticality.
FantasticFunKarma t1_jb9xihb wrote
Reply to Does thin stuff placed between pan and induction cooker affect efficiency in a significant manner? by BitsAndBobs304
It might a tiny bit. The magnetic field created by the coil in the stove top will decrease in strength the further away from the coil. So putting for example a tea towel to catch water from the pasta pot under the pot might slightly affect that distance. In practical terms it is not noticeable.
[deleted] OP t1_jb9xfeh wrote
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[deleted] OP t1_jb9wycy wrote
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Shark-Whisperer t1_jb9wofh wrote
Reply to comment by Jordanno99 in Why don't researchers just use conjugated primary antibodies for ELISAs? by ursoda
True, and a very good example is the multiplex kits available for simultaneously detecting multiple anti-SARS-CoV-19 isotypes (e.g., IgG, IgA, IgM) in blood in response to infection or immunization.
Antibodies are pretty stable molecules but physically attaching any additional moiety, such as a fluorophore, risks creating steric hindrance issues and reducing antibody binding to it's target antigen sequence. Even the smallest modifications such as biotinylation can slightly reduce binding in some instances.
These physical access issues can be more important with '2D' systems when the target is immobilized on flat microtiter plate bottoms, which effectively hides the bottom side of the molecule from exposure and target binding to the ELISA plate can alter its physical structure presented to the antibody, compared to 3D exposure of target/detection antibody in liquid/suspended environments.
Also, secondary antibodies are great for signal amplification, but non-specific background binding goes up, too, versus using a labeled primary ab. This isn't really an issue if appropriate controls are included, and the signal amplification is proportionally greater than any increased background binding.
formerlyanonymous_ t1_jb9tqbf wrote
Reply to comment by andrewmaixner in When humans next land on the moon, will our telescopes from Earth's surface be able to photograph the rocket on the moon's surface? by Nswl
Huh, I'd definitely thought bigger. Thanks.
[deleted] t1_jb9t3io wrote
[deleted] t1_jb9sptn wrote
Reply to comment by DevinVee_ in Does the age of the universe depends on where you are? by _bidooflr_
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[deleted] t1_jb9skdu wrote
Reply to comment by extropia in When humans next land on the moon, will our telescopes from Earth's surface be able to photograph the rocket on the moon's surface? by Nswl
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andrewmaixner t1_jb9rqlv wrote
Reply to comment by steelcryo in When humans next land on the moon, will our telescopes from Earth's surface be able to photograph the rocket on the moon's surface? by Nswl
And for those who benefit from geographic comparison, the moon is almost as wide as the continental United States, or 2/3 as wide as China.
extropia t1_jb9r3q7 wrote
Reply to comment by steelcryo in When humans next land on the moon, will our telescopes from Earth's surface be able to photograph the rocket on the moon's surface? by Nswl
That's a great example! Without any obvious Earth-like features like coastlines and clouds to compare it to, it's easy to look at the crater and think you could walk across it in a day.
[deleted] t1_jb9r1y4 wrote
Astrokiwi t1_jb9pbou wrote
Reply to comment by mdw in When humans next land on the moon, will our telescopes from Earth's surface be able to photograph the rocket on the moon's surface? by Nswl
Yeah, this is assuming totally ideal circumstances with perfect optics.
GhostBurger12 t1_jba0qvp wrote
Reply to comment by BitsAndBobs304 in Does thin stuff placed between pan and induction cooker affect efficiency in a significant manner? by BitsAndBobs304
Use pieces of wood of different thicknesses, a set volume of water, and a small pot.
Test & time how long it takes the water to reach a rolling boil.