Momentum and space and gravity and stuff

[NYG]

Originally Posted by 3.0L

Is a fly buzzing around inside the cabin adding to the weight of the airplane?

Weight or mass?

Mass = no.

[3.0L]

Originally Posted by NYG

Weight or mass?

Mass = no.

I thought I said weight.

[NYG]

Originally Posted by 3.0L

I thought I said weight.

We're in space though - weight ~ 0.

Or do you mean a regular airplane?

[3.0L]

Originally Posted by NYG

We're in space though - weight ~ 0.

Or do you mean a regular airplane?

Well, the OP was yakking about artificial gravity in some space vehicle, or something.

But yeah, a regular airplane that is burdened by gravity.

[freakystyly]

Flying is just falling and missing the ground, weightlessness is almost the same thing.

[dreamingat30fps]

Originally Posted by 3.0L

Well, the OP was yakking about artificial gravity in some space vehicle, or something.

But yeah, a regular airplane that is burdened by gravity.

Well I would imagine if you put the plane on a scale and the fly is flying around its weight would not count. However once it lands on some part of the plane then it's weight would count.

Originally Posted by freakystyly

Flying is just falling and missing the ground, weightlessness is almost the same thing.

Like the vomit comet astronauts use for training.

[AmuroRay]

Unironically, I don't 'believe' in gravity, space or any of that (as of this year. I became a biblical flat earther) but I'm just curious at what's being said.

How much mass is needed to create a gravitational force?

[///d]

Originally Posted by AmuroRay

Unironically, I don't 'believe' in gravity, space or any of that (as of this year. I became a biblical flat earther) but I'm just curious at what's being said.

Please elaborate

[AmuroRay]

Originally Posted by ///d

Please elaborate

On what? I edited my statement above - How much mass is needed to create a gravitational field?

Or are you asking me to elaborate my views?

[Frostynorth]

Anything with mass has a gravitational field, even you, but gravity is a really weak force, so it takes moon sized (for example) objects to have a significant amount.

[NYG]

Originally Posted by 3.0L

Well, the OP was yakking about artificial gravity in some space vehicle, or something.

But yeah, a regular airplane that is burdened by gravity.

Then yes, the aerodynamic force of the fly's wings to keep it afloat will add to the weight.

[NYG]

Originally Posted by AmuroRay

Unironically, I don't 'believe' in gravity, space or any of that (as of this year. I became a biblical flat earther) but I'm just curious at what's being said.

How much mass is needed to create a gravitational force?

It's not just mass. It's the product of masses inversely proportion to the square of their distance.

If you're asking how much mass is required to curve space time, then the answer is any mass. The gravitational field would just be infinitesimal when you scale it to planets. Frame of reference is important.

[AmuroRay]

Originally Posted by Frostynorth

Anything with mass has a gravitational field, even you, but gravity is a really weak force, so it takes moon sized (for example) objects to have a significant amount.

Oh?
How do you measure it? How many times does the gravity a car produces vs a person? Or a mountain? Do we see examples of this?

not being snarky, serious question.

[///d]

Originally Posted by AmuroRay

On what? I edited my statement above - How much mass is needed to create a gravitational field?

Or are you asking me to elaborate my views?

Elaborate on views please

[Frostynorth]

Originally Posted by AmuroRay

Oh?
How do you measure it? How many times does the gravity a car produces vs a person? Or a mountain? Do we see examples of this?

not being snarky, serious question.

There are equations, but this is beyond my understanding of math.

Added picture of the deflection of space with the earth. The more massive the object, the more it deflects space, the more space pushes down (gravity).

[///d]

Originally Posted by AmuroRay

Oh?
How do you measure it? How many times does the gravity a car produces vs a person? Or a mountain? Do we see examples of this?

not being snarky, serious question.

I have read that the pull of Earths gravity varies depending on density and where you are on the planet.

https://www.newscientist.com/article...rths-extremes/

[AmuroRay]

Originally Posted by ///d

Elaborate on views please

Of course, where would you like me to start (and again, none of this is sarcastic) I mean, I believed in what you do currently my whole entire life, so it's not something I was raised with.

But basically, I had a wakeup call where I started to question everything. I did some true research into what we believe collectively as a society and realized that much of what is taught as fact, is actually theory treated as fact, where the details are claimed to be too complex for people to understand.

For instance - you, I or anyone else have literally ever ever ever seen the curvature of the Earth. You can use a high powered camera and see over the horizon at ground level and see objects - which implies they are not moving over a "curve" but actually by perspective.

I've seen the moon landing (available to anyone who wants to watch on Youtube) and it's some of the fakest, worst special effects (good for the 1960s) I've ever seen. Pictures of Mars taken Devon Island, astronaut on green screens, no actual unedited pictures from Earth - faked perspective photos, etc etc.

And yes, I have examples of every single one of these and more.

Originally Posted by Frostynorth

Though there are equations, this is beyond my understanding of math.

Again, not trying to be rude - is there a device that can actually measure gravity?

[NYG]

Originally Posted by AmuroRay

Oh?
How do you measure it? How many times does the gravity a car produces vs a person? Or a mountain? Do we see examples of this?

not being snarky, serious question.

Weight = mass * gravitational acceleration

Therefore, mass = weight/gravitational acceleration

Since we use a constant 32.2 ft/s2 or 9.81 m/s2 for gravitational acceleration, the weight of each object is proportional to its' mass.

If a car is 5000 lbs and a person is 100 lbs then the car is 50 times more.

[NYG]

Originally Posted by AmuroRay

Again, not trying to be rude - is there a device that can actually measure gravity?

Yes. With a scale.

[Frostynorth]

Originally Posted by AmuroRay

Again, not trying to be rude - is there a device that can actually measure gravity?

Places like the NASA Glenn Research Center, can do micro gravity tests.
https://www1.grc.nasa.gov/facilities/zero-g/

https://www.nasa.gov/audience/foredu...ith_Grace.html

[///d]

Originally Posted by AmuroRay

Of course, where would you like me to start (and again, none of this is sarcastic) I mean, I believed in what you do currently my whole entire life, so it's not something I was raised with.

But basically, I had a wakeup call where I started to question everything. I did some true research into what we believe collectively as a society and realized that much of what is taught as fact, is actually theory treated as fact, where the details are claimed to be too complex for people to understand.

For instance - you, I or anyone else have literally ever ever ever seen the curvature of the Earth. You can use a high powered camera and see over the horizon at ground level and see objects - which implies they are not moving over a "curve" but actually by perspective.

I've seen the moon landing (available to anyone who wants to watch on Youtube) and it's some of the fakest, worst special effects (good for the 1960s) I've ever seen. Pictures of Mars taken Devon Island, astronaut on green screens, no actual unedited pictures from Earth - faked perspective photos, etc etc.

And yes, I have examples of every single one of these and more.

Interesting. I know theres plenty of questionable "facts" out there. It's always fascinating to hear other peoples views on this.

Regarding not being able to see an actual curve of the Earth, what about things like having to account for curvature of the Earth in long distance shooting, or tower heights for long distance radio transmissions, and the likes?

[AmuroRay]

Originally Posted by NYG

Weight = mass * gravitational acceleration

Therefore, mass = weight/gravitational acceleration

Since we use a constant 32.2 ft/s2 or 9.81 m/s2 for gravitational acceleration, the weight of each object is proportional to its' mass.

If a car is 5000 lbs and a person is 100 lbs then the car is 50 times more.

So I'll ask - has anyone actually ever seen or felt the gravitational pull of another object? I remember 9.8 m/s from physics, but my understanding was that was actually an average and not a constant value.