Yeah of course. They’re all the same

Yeah, sure. He never followed through. Sure, every cheater never follows through.

And if you believe that, I’ve got a bridge in Brooklyn I’d like to sell you.

You have to make it very clear to your prospective romantic interests that you’re not interested in a friendship at the beginning of the relationship. “I’ve got enough friends, I’m not interested in adding another. I’m interested in being in a romantic relationship and it’s ok if you don’t want that with me. But if so, then I hope you have a happy life.”

You’re being honest by saying something like that and you’re not going to put a lot of effort into a friendship that is more likely to never be more than a friendship.

And frankly, you’re doing yourself and your girl friends a great disservice by continually getting into these friendships hoping to one pick up the girl. She broke up with a long time boyfriend; she needs time to get over the pain. She’s probably not in he mental space to be in a new relationship right now and needs time.

And hanging around a girl hoping to win her over is so stereotypical. Every girl has guys hanging around them Hopi to score one day it’s no wonder so many people think that men and women can’t be friends.

Redshift is caused by the motion of the object emitting the light and the fax that light behaves like a wave.

Consider the following example. Imagine a train sitting still on the tracks. The sound waves emitted by the engine propagate away from it as expanding, concentric spheres. There is no motion so an observer hears the sound at their natural frequency.

Then the train starts to move. At each interval, it emits a new spherical wave that has moved from the position where the last sphere was emitted. That means that the distance between the sphere just emitted and the previously emitted sphere in front of the train is closer than the distance between them in the back of the train. When the observer hears the sound, they hear a higher pitched sound as the train approaches them (blue shifted) and a lower pitched sound as it recedes from them (red shifted).

The same thing happens with the light emitted from stars in a galaxy. The color of the light changes because it’s light and not sound. But it’s all caused by the way we perceive light (or sound for the train) and not anything intrinsic about the universe.

The thing is that the chemical composition of the material the planets are made from would match that of the planetary disk surrounding the parent star. The odds are that signature will be different for different stars, but will be very similar for the planets in that system.

Good luck OP. I hope the 2 of you work through this and are very happy together.

I’m the father of 2 who are now in their 20s.

Take my word for it. When you’re feeding a newborn, there’s always some chance you’ll be wearing the kid’s meal. At least until their stomach is big enough for them to sleep the night.

I wouldn’t be too harsh on your friend. It’s easy to forget to warn friends about your kid’s projectile vomiting when you’re sleep deprived.

This past August, my wife and I went on vacation in the Orlando area. While we were there, we checked the NASA website and found that a SpaceX launch was scheduled for that Friday. And we decided to go see it.

We got there before the gates opened. Viewing the launch was included in the admission fee. There’s a bus terminal in the visitor complex that takes you out to the Apollo/Saturn V building; the viewing stands are adjacent to that building.

The launch was impressive and I have a 1:35 video of the launch. Worth every penny we spent.

Now, SLS is built using old Shuttle parts. The Shuttles never seemed to happen on the date and time they were first supposed to go. That’s exactly what happened with Artemis I. So if you’re not living in Florida it’s going to be difficult to see a manned launch since you don’t know if the launch is actually going to happen when NASA says it will.

No malice intended, but you sound like my wife, who will bite off her nose to spite her face and has a very sharp tongue. I can’t tell you how many times she’s hurt me because she’s taken something I’ve said the wrong way.

I suggest that you talk to him and give him a heartfelt apology. Tell him that you were upset and why you were upset and that you reacted without thinking. And that you’re very sorry. That you do appreciate all that he does.

You both need to remember that you’re a team. It’s supposed to be the two of you against the world and that everyone contributes in their own way.

Good luck

Chemically speaking, a metal is a substance whose outermost electrons are only loosely attracted to the nucleus and form an “electron sea” when in the solid state. Which is why metals are better conductors than non-metals.

I don’t have enough expertise to give you a definitive answer, but I think you don’t fully understand how Lagrange points work. Mind you, I’m not sure I understand how they work, either, so what I’m about to say may be worthless. So keep some salt handy.

A Lagrange point is a place relative to the orbit of the satellite object where the gravity of the satellite and its primary cancel out. Any third object that somehow wanders into one of these points tends to stay there because of the gravitational interaction between it, the satellite and the primary.

So there are Lagrange points relative to the Earth and the Sun where the gravity of both cancel out. The JWST is stationed at one of these points now. Saves JSWT a lot of fuel for station keeping.

There are Lagrange points relative to the Moon’s orbit where the gravity of the Earth and the Moon cancel out as well. We’ve placed nothing there yet but that could change one day.

The deal with Lagrange points is that any third object that somehow makes it’s way to the location of one of the Lagrange points tends to stay there. This happens with small objects such as spacecraft or asteroids floating around the solar system because they don’t have much mass relative to the Earth or the Moon to affect the location of the Lagrange Point.

Now let’s consider a planet.

Planets are much bigger objects. Everything in a planetary disk starts out orbiting the star. Objects collide with each other frequently. The thing is these objects are not initially in any Lagrange points. They approach and each attracts the other. The Lagrange points aren’t likely to be along the vector of approach and there’s a lot of force pulling them together. As they get nearer, the location of the Lagrange points change because of the large amounts of mass approaching each other. If they collide, after all, there would be a lot more mass where the original planet was, changing where the Lagrange points are; the same thing happens when the 2 planets are closing in on each other.

So planets, because they’re so big, will orbit each other or collide. I don’t see how they could be in each other’s Lagrange points.

Well, to be honest, all satellites and their planets orbit each other. In most cases the center of mass of the system is inside the planet because it’s very much more massive than the moon. In the case of Pluto and Charon, the difference in mass isn’t that great so you can tell that they’re orbiting around a point that isn’t entered on the planet’s center.

2 planets in the same orbit would collide with each other in some amount of time depending on the other objects in the system, their masses and distances from the pair.

These other planets pull on the pair in differing strengths and cause one to speed up and the other to slow down. Eventually they collide and become one body.

OP, the solution to 99%+ of relationship problems is communication. Unless you can read minds, the only way to know what another person is thinking is to ask.

I’m glad you took the time to talk to your girlfriend and you are feeling better. Remember this lesson in the future.

Sounds like he’s been trying to have something with her and doesn’t want the two of you to compare notes.

I suggest getting together with her without him knowing and talk about everything with her. And after that , depending on what you learn, maybe get rid of him.

Definitely give up drinking. And get on your knees and beg for forgiveness

The only form of life that we know of is ours. We understand our life chemistry and what it requires. There are other theoretical life chemistries but they’re only theoretical.

I’m not going to pretend I know how those other chemistries work but it makes sense to first check for the conditions that we know actually work before we look for theoretical conditions.

While it’s possible it’s only bruised, it could be sprained or, at the worst it’s broken. Either way you’re going to need crutches for some weeks.

Now, I’m no doctor, so take that with a grain of salt, but I have sprained my own ankle in the past and it hurt like hell for a few days. Not a fun experience.

Looks like it could be more than 1 rock and if you move a few feet in any direction it probably wouldn’t look like a bird anymore.

Gravity. The atmosphere stays close to the surface of the earth because of earth’s gravity. When you get up high enough, gravity doesn’t pull hard enough to keep the air molecules bound to the planet. But lower down, the weight of the molecules above the ones at that level help keep them bound to the earth.

This is also why Mars doesn’t have a thick atmosphere.