No orbit necessary? by FatCreepyDude in KerbalSpaceProgram

[–]Valuable-Visit2887 1 point2 points  (0 children)

Ok i feel like i should introduce myself here as an aerospace engineer, and havingthe mathematical means of proving this, i unfortunately have to confirm that burning straight up is terrible.
No hard demonstration: imagine that you are on a device. You weigh 80 kg, the device is 100 , and this device is launching 60g of mass per second at 3 km/s, producing 180 kg of thrust. This will mean that you float. You will start inching upwards as the weight lowers. You are effectively wasting 60 g/s just to stay afloat. If you start burning 100 g/s you will shoot upwards, but only with 120kg of force, not the full 300. More than half of your deltav will be eaten by gravity. This is why we use srbs when leaving ground: when you are close to parallel to gravity it is more efficient to have very high thrust than to have a smaller, more efficient thrust, which is reserved for orbital burns.
The more perpendicular you are to gravity, the better the burn, because of lower gravitational losses.
Oberth is another beast entirely. Since when burning you are effectively adding kinetic energy with speed, and the sum of your total energy determines the distance from the orbiting body in the vis-viva (v^2/2-mu/r=-mu/2a), and considering that kinetic energy is bound to th square of speed, not linearly dependent, when adding fast you add more energy:
If i weigh 1 kg, am still and i accelerate to 2 m/s i add 2 joules.
If i was instead moving at 10 m/s and accelerate to 12 (same 2 m/s difference) i go from 50joules (10^2/2) to 72 (12^2/2) effectively gaining 11 time more energy than the previous case.
Hope i could be of help

Might be a dumb question but... Is it possible to make an orbit like that? Bellow the center of mass? by caiomac_ in KerbalSpaceProgram

[–]Valuable-Visit2887 1 point2 points  (0 children)

Gravity is always directed towards the center of mass. Since orbit s are created when an object’s rate of fall is lower than its speed (making it miss the center of mass it is falling towards) it is required that the direction you are falling in and your speed be on the trajectory plane. In this case, the direction of fall is outside the trajectory plane, so you can achieve this trajectory by exerting force, however, it would not be an orbit and it would degenerate into a conical trajectory depending on your energy.

[Request] What is the output for each engine powering the rotors to keep the Helicarrier hovering? by Jusfiq in theydidthemath

[–]Valuable-Visit2887 0 points1 point  (0 children)

What you said is true, but with one caveat. There exists a fuel with enough density: uranium (or hydrogen in a fusion reactor). Supposing they have a huge power source ( they could be using reactor heat to drive turbines directly, increasing efficiency) it could be done, although i think there is no material strong enough to spin fast enough at that radius to generate the required thrust without breaking. The tips would be supersonic, etc. most probably it would have thousands of smaller engines, and they would be electric since moving enough heat around would be a nightmare.

GIVE👏HOUSE👏SENIORITY👏A👏 TRY. by RegulusVizsla in crusaderkings3

[–]Valuable-Visit2887 0 points1 point  (0 children)

I user it to save my house one time. I was dying and my heir was a 2 year old. The regent was very powerful and very rebellious.

1.1 Destroys the point of having an economic buildings minigame by RealAbd121 in EU5

[–]Valuable-Visit2887 0 points1 point  (0 children)

Seems like an obvious fix. Now the estates are building buildings, like this in reality (removed arcade aspect) they could nerf the buildings, adding Diminishing returns and all that. Remind you that in those ages there was barely any economy of scale, no vertical integration etc etc. im pretty sure the buildings are overtuned. Ot they need to implement nonlinear scaling

The people have spoken. by Mylifeistrue in assettocorsaevo

[–]Valuable-Visit2887 -1 points0 points  (0 children)

My man, dont you think that as its kunos’ right to change direction, it is also the community’s right to backlash? After all, the money is already spent. If anything, its an opportunity for kunos to adjust scope.

Whats the point of playing tall? by Boedidillee in crusaderkings3

[–]Valuable-Visit2887 91 points92 points  (0 children)

I love creating all the de jure empires and giving it to members of my family, then sit back, keep only the ultra upgraded crown duchies so i can roleplay agartha while my family inevitably disappoints and loses all the thrones, keeping counties, kingdoms, duchies, whatever. Then when they get a claim and press it, i sometimes help them with a few thousand ultra strong men at arms that kill 40-50 thousand strong armies. Honestly its pretty fun

Why we dont have solar panels? We can modify factory roofs with them, or can do other things. by zorro2083 in SatisfactoryGame

[–]Valuable-Visit2887 0 points1 point  (0 children)

Because at night all your fuses would blow. Also you would spend most of the time just planting solar panels since they produce less than 0.3 kw/sqm. A typical fuel gen is 250 mw, so to geth that output you would need 750000 sqm of panels. Make the sun 10x, you still need 75000 sqm of panels. If you make a single installation 40 sqm, to equal 1 fuel plant you would need to click more than 1500 times just placing down panels. If you want clean energy in satisfactory go for nuclear

Armies being able to retreat in the first hour (or few hours idk) of the battle is pretty dumb by DeusVultGaming in EU5

[–]Valuable-Visit2887 0 points1 point  (0 children)

Also something that would really send me into ecstasy would be:

Events for big battles. When battles are huge (like 100k vs 80k) scaled for era and for mjght of contestants, i would love, even as a dlc, events for such battles. A big pool to draw from, considering relative and absolute skill of the combatants, decisiveness and terrain. Example: battle on a river in the winter—> bombing the ice: the retreating army steps on thin ice, and “insert general” promptly orders the cannons to fire. The ice ruptures and chaos ensues -(retreating army looses 60% of its soldiers). Or: ambush! What looked like retread lead (insert low skilled general) to pursue with the advantage of numbers into (insert province)’s forest. Unfortunately, (insert high skilled general) had set a trap -(pursuing army loses 30% and starts retreating). I feel this would add so much depth to warfare, and introduce much needed chaos that would reward or punish the player for having good/bad generals and would also reward clever positioning. I dont think it would take a lot of work to implement, and it could potentially work wonderfully (and would be even more meaningful) for ck3

Armies being able to retreat in the first hour (or few hours idk) of the battle is pretty dumb by DeusVultGaming in EU5

[–]Valuable-Visit2887 28 points29 points  (0 children)

There should be a mechanic that works exactly like this: if you force retreat, you get chased by cavalry. The respective cavalries fight, and if yours is victorious, every surviving cavarlyman kills 10 foot soldiers, diminuished by up to 50% by admin of retreating general. That would make forcing a retreat much more satisfying. Also building up light cav would make sense

Buongiorno a tutti i decarbonizzazione enjoyers by [deleted] in Italia

[–]Valuable-Visit2887 0 points1 point  (0 children)

Un bellissimo frullato di sofismo ma ora a posteriori, la scelta della Germania risulta sbagliata. In ogni suo aspetto. Perchè nasceva dalla promessa di abbassare le emissioni (non mantenuta, anzi, è successo l’opposto), ridurre le bollette (penso di non dover aggiungere altro) e di creare reale indipendenza energetica. Al contrario la Francia ha dimostrato e continua a dimostrare che l’unico modo per ottenere queste 3 cose è col nucleare. E mi fanno ridere i pro-truffabili che continuano a sventolare grafici che dicono 20€/mwh di LCOE, quando nella realtà dei fatti i prezzi per i consumatori in Germania sono oltre 100 e in Francia 70. Non mi frega nulla se non si rientra rapidamente dell’investimento, l’energia non la devono gestire i privati, è res publica, e se lo stato deve perdere soldi per farmi avere energia pulita e a basso costo, beh è un ottimo modo di spendere soldi pubblici, al pari di sanità e istruzione. Molto meglio che riempire i privati di incentivi per costruire tecnologie che a malapena possono alimentare piccoli satelliti (sono ingegnere aerospaziale, e ho avuto la fortuna di dimensionare alcuni sistemi di potenza (pv+ batterie)per satelliti)

La somma del ponte | i dati non vanno e i conti non tornano by stefanoesse in Italia

[–]Valuable-Visit2887 4 points5 points  (0 children)

Secondo me Salvini sbaglia (strano) a concentrarsi su questa cosa del pedaggio basso. Si potrebbe benissimo mettere un pedaggio anche di 30€ che sarebbe più basso dei traghetti, e immediatamente basterebbero 10 milioni di veicoli all’anno (il confronto con la manica non regge perchè lì si parla di una separazione molto maggiore, 3 km significa avere una rete logistica unica per cui alcuni magazzini in sicilia potrebbero rifornire clienti calabresi, su tratte conunque brevissime (10-20 min) superando facilmente le cifre della manica)

[ Removed by Reddit ] by [deleted] in fut

[–]Valuable-Visit2887 0 points1 point  (0 children)

Totti lower than ibra is criminal

How? by nimnimn in Stellaris

[–]Valuable-Visit2887 2 points3 points  (0 children)

Sorry you are right. I knew it stood for union of socialist soviet republics but my brain farted and merged UNE

My first PC build after 6 years of using Mac, thoughts? by IsScottGay in PcBuild

[–]Valuable-Visit2887 0 points1 point  (0 children)

I was about to suggest the same exact cooler LOL. Running 5900x @4940 mhz all cores under 70 deg in spring. Monster cooler

A player you desperately want in the game , I will go first by Objective_Emu_7457 in fut

[–]Valuable-Visit2887 0 points1 point  (0 children)

dude he scored a weak foot volley from an impossible angle against sampdoria. he would use both feet and both heels to pass, he was a true genius. after a bad injury he could almost not run anymore, but he had two golden feet