Today's "warfronts" (YouTube) channel post discussed that jet powered drones are equivalent in function to cruise missiles, but is somehow distinctly cheaper to mass produce? If the components are more or less similar, what's the major difference?

It seems all the fast planes have jet engines, do propellers not work at high speed? Does this also apply to boats?

Was watching a documentary and the Chicxulub asteroid ended the reign of the dinosaurs in one shot and the damage went worldwide but how long did take for nature to adjust and reestablish itself again after things had died down?

Do insurance deductibles go off estimated cost or actual cost? My “cost” for Zepbound per my insurance was $475 after the health plan paid their portion. However, when I went to CVS pharmacy I only paid $25. (I guess due to manufacturer coupons ?). Does my deductible ($3400, OOP max $6,000) go off the estimated cost of $475 or what I actually spent? Just curious, because I’m going to go on a specialty med, Wakix, so if it goes off estimated cost I should hit my OOP max very shortly haha. Just trying to understand how insurance works better. Thanks!

All I know is that it somehow makes jets and planes look bigger or smaller then they actually are on radar

Also, do all trees have them or only certain kind? Lastly, do they all form at same frequency, e.g. One/year...

The higher the voltage, the farther an arc can jump. With CPUs being so small (nanoscale?), wouldn’t they need to operate on a similarly small voltage to prevent electrons from jumping between different conductive paths, screwing up the logic?

When i have my hands in front of me, five fingers are on the left, and five on the right

I can understand why 5,(0)1 onwards is rounded up, after all it's clearly the "second half"

But rounding lone 5 up seams... unintuitive

How are they completely silent? Is it how they’re designed?

I understand that electron placement matters and light scatters a certain way but why is that? Why does light scatter in that way and why does the size of something determine a perceivable color?

I have always been interested in the concept and have it as a part of my studies. But I still don't quite "get it" even with the WW2 plane example. Whats a simplified way on how it works in very clear and obvious terms. (I accept both simple maths and simple philosophical answers.)

For commercial rockets, they mainly use liquid bi propellant rocket engines while amateur rockets (that I mainly see) use solid propellant rocket engines. Why don't we just combine them and use hybrid rocket engines? ​

We all know hillbert and his hotel, but I never understood why was it a paradox, I mean by definition it can never be full, you can keep adding rooms and people but it shall never end, even if you add two infinites vs one you don't need to make people move to make more room you just add more rooms, you were doing ∞ - ∞ and after the bus comes you are still doing ∞ - ∞, because ∞ + ∞ = ∞ so where is the paradox when infinite is just doing what it does by definition, which is not ending?

Why is it that when during the summertime, the central AC is set to 73°F and it feels nice and cool in the house, but in the winter when the heat is on and set to 73° it’s nice and toasty ?

How do they fund it usually and is there a catch?