On their massive scale you’d think that several would have opposing arms different lengths due to the way suns and solar systems end up forming. Most of the imagery I see shows almost all galaxies symmetrical. Just curious.
Wouldn’t grow something from the inside require a very strong force to “move” the already present one? Instead growing from the last “layer” towards the outside would require a lot less force, but perhaps a lot more matter....
“Stronger” hearts typically have a resting pump rate lower than that of weaker or less healthy ones. A healthy, athletic male might have a resting BPM of 60, while an otherwise healthy but post-partem female could be closer to 90....
Seems like it should and the result should be one. Does mathematics agree with me on that?
As in, are there some parts of physics that aren’t as clear-cut as they usually are? If so, what are they?
I am seeking a scientific explanation behind this phenomenon which is unprecedented to me....
I know it can be a hot topic. I have long wondered what the real isolation timelines were for East Asia, India, Africa, and Europe. I’m most curious about the first two as they seem so divergent. Like a group had to be mobile enough to relocate, but then stay within a region for a (?) long time with little influx....
I mean, why evolution selected dinosaurs to become that huge?
Just a thought, if an event happened well beyond the observable universe that caused entire galaxies to be destroyed radiating from a point source event, what would it look like from our perspective and how close could it get on our observable horizon while still being unable to reach us due to expansion of the universe?...
I was thinking about vaccines and their usefulness, when it occurred to me that, in using vaccines, we’ve sort of pigeonholed viruses into behaving the way covid does. Haven’t we?...
I understand how lucky imaging gets the results it gets, but I’m wondering specifically how the 10% of frames are chosen....
More of a classification question, but I’m really curious about what the metric would look like if we try to be systematic about it....
Think “you wake up in the woods naked,” Dr. Stone-style tech reset. How could humans acquire a 1-gram weight, a centimeter ruler, an HH:MM:SS timekeeping device, etc. starting with natural resources?...
I was dealing with a problem which stated that two objects were moving with same velocity v and one was a car with mass m and another a truck with mass M, such that M > m. They collided and came to a halt. Their collision lasted for 1 second. Which experienced a greater force of impact?...
As the title asks, what is the average mass of each kind of cloud? Ignoring things like overcast days, and only considering clouds large enough to identify. Or maybe rather than “average” it’d be better to say “what is the mass of an archiypical cloud of each type?” Eg an archiypical cumulus, cirrus, cumulonimbus, etc.
It is said that ACs are counterproductive in fight against global warming, in that while they may make the local environment temporarily livable, the greenhouse gases produced while making the electricity needed to operate them heat up the rest of the Earth by much more than the relief from the AC itself. By how much exactly is...
I let people rate how much they like different things on a scale of 1-10. How do I actually tell if people like one thing more than another thing if the sample sizes are different? This is not about any real scientific study, more like a personal test :)...
Does anyone know where I could find a reasonably priced photon pair generator online?
Feels like a shower thought, but I seriously want to know if there are any implications, because it seems like identical twins are able to sense, understand, and almost be extensions of each other - finish each other’s sentences/thoughts. Some even claim to be able to sense their twin when they’re separate. Hard to believe,...
I am talking about gadgets we see in science fiction movies that obey the laws of physics of our universe and could theoretically be constructed, barring the limitations of materials, energy and time faced by our civilization at the moment.
Let’s say the quantum uncertainty which is currently quite small and doesn’t affect our life on macroscopic scale suddenly increased. Magically we are still living in this weird rule of physics. How would we see daily stuff? like how would I see a ball rolling in my sight?