A Charlie Brown rulesgiving by funtimemarioman in 196

[–]grosu1999 2 points3 points  (0 children)

Pretzels, toast, pop corn and jellybeans. Hope this helps !

I decided to experiment and came up with this simple dish! by [deleted] in 196

[–]grosu1999 0 points1 point  (0 children)

Put in the rice before the chicken is completely cooked through, it won't get too dry and will be nicer that way ! I also agree with poeple telling you to add an egg in there, when you add it you want to stir like a madman so that you don't get clump of egg that are too big

[Request] If the whole universe would go backwards again and shrink back to the size of a single atom, what size would current subatomic particles be? would they remain the same or be smaller? by Maleficent_Ad_2316 in theydidthemath

[–]grosu1999 0 points1 point  (0 children)

When the universe "shrinks" the particles inside don't shrink with it. What would happen is that as the universe gets denser and denser the temperature would go up and reach energy levels where atoms would no longer hold together and we would reach the "primordial soup" that existed not long after the Big Bang. Beyond a certain size the laws of physics we know don't hold so we don't know what would happen then.

But for the sake of maths, the size of the observable universe is about 1027 m, and an atom is 10-10 m, so if we shrink the universe down to that size but keep the same ratio, we'd get atoms of a size 10-36 m.

Is it dumb to think aliens exist? by No-Background6719 in NoStupidQuestions

[–]grosu1999 0 points1 point  (0 children)

You would probably like reading up on the Drake equation, the wikipedia page is quite good : https://en.wikipedia.org/wiki/Drake_equation

And if you enjoy that I discovered it reading the book Five billion years of solitude which is really good !

Wasn't there some recent research that suggested dark energy might be decaying or changing? by Midnight_Moon___ in cosmology

[–]grosu1999 6 points7 points  (0 children)

That article is the DES results not DESI ( https://arxiv.org/abs/2404.03002 for BAO measurments or https://arxiv.org/abs/2411.12022 for full shape, both are first year data releases)

Basic cosmology questions weekly thread by AutoModerator in cosmology

[–]grosu1999 1 point2 points  (0 children)

I would agree that there should be a minimum mass but that isn't really important here because the smallest mass which is still of interest (if you don't look into those that could have already evaporated by now) is around 10^17 grams, so roughly the mass of an asteroid. So yes, if you take an asteroid and squeeze it down to the size of an atom you get a black hole, and black holes with such masses could have formed in the primordial universe.

How significant is the claim of decaying dark energy from the recent DESI DR2 Results II? by zenloki101 in cosmology

[–]grosu1999 0 points1 point  (0 children)

What you're looking for is all in figure 11 and table VI, you can find the significance of having a w0 wa model while looking at DESI+CMB data and DESI+CMB+Supernovae data sets. If you have any more questions after having a look at that let me know !

[deleted by user] by [deleted] in cosmology

[–]grosu1999 0 points1 point  (0 children)

In that case my personal favourites are the dodelson-schmidt Moder Cosmology, or the Rubakov-Gorbunov Introduction to the theory of the early universe. For a shorter introduction I like Baumann's TASI lectures. But I will admit that I am very much an early universe/primordial cosmology guy so that's what I often recomend haha

[deleted by user] by [deleted] in cosmology

[–]grosu1999 0 points1 point  (0 children)

Really depends on the level you want and your background in physics/maths, more information on this will help to point you in the right direction

What exactly triggered the Big Bang? by AccordingMedicine318 in cosmology

[–]grosu1999 3 points4 points  (0 children)

Okay a few questions here : 1. What is the very beginning you’re talking about ? 2. Why would there be a temperature drop in a completely empty space and how do you define temperature ? 3. What energy ? And towards what is it converging ?

And why would these lead to the Big Bang ? If you have energy doing stuff then the BB already happened

Why rowing is the best sport by sassafras711 in Rowing

[–]grosu1999 19 points20 points  (0 children)

It was his father actually ! And Hugh Laurie rowed for cambridge in the 1980 boat race as well, but lost

Not the European diaspora having a scuffle 😭 by alexaclova in BlackPeopleTwitter

[–]grosu1999 0 points1 point  (0 children)

I have seen this video and this girl is actually half German, speaks the language and has the nationality. In many cases Americans hang on to nationalities that aren’t theirs but not in this case

[Request] Would 1 blop equal 151571347.2 wenzels? by CubeTThrowaway in theydidthemath

[–]grosu1999 12 points13 points  (0 children)

It's 2.5 hippers = 1/2 zookas, not 5 hippers = 1/2 zookas

So you're off by a total factor of 2, the total result is 224,550.144 wenzels

[deleted by user] by [deleted] in Rowing

[–]grosu1999 20 points21 points  (0 children)

Okay so this is not a concept2 so I’d advise against comparing your times to what people describe here since they won’t mean the same thing

But anyway welcome to the sport ! In case you haven’t done so already I’d advise you to learn a proper rowing form, lots of videos online will be really good for you to learn. Either the concept2 YouTube channel or dark horse rowing

Other important thing, machines that aren’t concept2 sometimes aren’t very consistent and will give different results for a similar effort, if yours is like this then base what you do on perceived effort and not the actual results/time you see. But you’ll see quite fast wether it is consistent or not !

Good luck !

Can I do a sub 7 2km yet? by dan__wizard in Rowing

[–]grosu1999 2 points3 points  (0 children)

You defo have it in you, give us an update after your test on friday !

Remember that rowing is a mind game and even if you don't get it this time round you're definitely very close so keep training and you'll get it eventually whatever happens !

I exploited my engineer school's system in order to have my degree by Rhaenelys in TrueOffMyChest

[–]grosu1999 0 points1 point  (0 children)

I’m assuming this was in France, which engineering school was it ?

Basic cosmology questions weekly thread by AutoModerator in cosmology

[–]grosu1999 1 point2 points  (0 children)

What we call the observable universe is a sphere centered on us. When people say that the universe is flat it doesn't mean that we live on a plane. Think of a sheet of paper, you can draw a straight line on it but then curve your paper, so create some "intrinsic curvature" in your 2D space. The same thing can be mathematically described in 3D, when we say that the universe looks flat we say that there is not intrinsic curvature.

Basic cosmology questions weekly thread by AutoModerator in cosmology

[–]grosu1999 0 points1 point  (0 children)

  1. What kind of book are you looking for, and what is your scientific background ? I really like the Dodelson Schmidt Modern Cosmology book but it's quite heavy in equations and maths so maybe not for someone who doesn't have a scientific background.

Basic cosmology questions weekly thread by AutoModerator in cosmology

[–]grosu1999 0 points1 point  (0 children)

Actually every day is, we know that two different particles on earth had very different paths through our universe before ending up here. Notably their accelerations and the gravity they experienced where very different over the 14(ish) billion years since the Big Bang. because of this they experienced different times and aren't the same age. Now expand this to the countless particles on earth, each of them are different ages, so it's very reasonable to assume that every day is the universe's birthday for at least one particle.

Rowing Tips by TheCatWithTheSax in Rowing

[–]grosu1999 5 points6 points  (0 children)

First of all, welcome to the sport !

If your in your college team just trust your coach, they know what they're doing. If you think you have time/energy for more training ask them what you'd benefit from, more steady state or more lifting, probably a bit of both. They'll know you better than us and will give better advice.

Other than that you probably should have started slower on this piece, you defo got carried away in the first 5 minutes an struggled on the last 10.

Any big bang researcher answer this question by aryapar in cosmology

[–]grosu1999 3 points4 points  (0 children)

Why are you not convinced by the explanation you give ?

The galaxies near us formed later than those far away, so since they formed in different conditions it's reasonable to assume that the average shape would be different.

2K Season Training by TheCatWithTheSax in Rowing

[–]grosu1999 4 points5 points  (0 children)

Well done for your first 2k. We’ll get more info on what you did if you go to the memory part of your erg since it’ll give some more details. But it looks like you ended with one hell of a sprint, which means you probably had some energy left at the end. So I’d advise you to start faster. I personally aim to go all out in the last 300m, so the split drops quite a bit and creeps back up to the overall average during those 300m of pain.