Fair enough, everyone has their own bag. Who knows, they might just be passionate? I just like to try to step outside of my own perspective as much as I can. It's genuinely challenging and there can be a lot to learn.
Enjoy the benefits of a premium membership!
Upgrade Account
-
TalkBass has been independent since 1998. Add your voice.
Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
Join free Log in
Want zero display ads or expanded classifieds tools? Compare plans.
The earth is flat?
- Thread starter Element Zero
- Start date
Fair enough, everyone has their own bag. Who knows, they might just be passionate? I just like to try to step outside of my own perspective as much as I can. It's genuinely challenging and there can be a lot to learn.
I just got asked to try an experiment by a flearther.
“Replicate the water on earth. Make water cling to the exterior of a ball while it’s spinning. Can you replicate that in any real life practical experiment?”
“Replicate the water on earth. Make water cling to the exterior of a ball while it’s spinning. Can you replicate that in any real life practical experiment?”
That's like saying a cheetah can't run 50mph because a person can't demonstrate running at at 50mph.
Either way here's the answer to the question if it was phrased less stupidly: (from rationalwiki)
How can water stick to a spinning ball?[edit]
This is a surprisingly common question, and reveals how unwilling flatties are of doing a single mathematical calculation. On a rotating sphere, all points in a longitude have the same angular velocity, but as the latitude tends to 0, the tangential velocity increases to its maximum, and so does the centrifugal force. A point on the equator travels 40,075 km (Earth's circumference) in 86,164 s (a sidereal day), yielding a linear speed of 0.465 km/s, or 1,674 km per hour! Everything should fly into space, right? No.
Centrifugal acceleration can be derived to be
r being the radius and ω being angular velocity. With an equatorial radius of 6.3781×106 m and rotational period of 86164 seconds (ω = 7.292×10-5 s-1), an object at the equator must be accelerated 0.0339 ms-2 downwards to stay on Earth. Although gravity varies from place to place, this is far exceeded by the approximate 9.8 ms-2 provided by gravity.
For anything to fly upwards, either gravity would need to be
That’s, waaaaaay above my pay grade. Lol. I just explained how it’s not a viable comparison. The earth is surrounded by a vacuum. There’s a pressurized atmosphere between the water and the vacuum of space. Then there’s the immense density of the earths core which is spinning with molten rock and various elements creating magnetic fields and gravity.
Alkali Ike
Gold Supporting Member
- Jan 1, 2011
- 2,850
- 15,649
- Disclosures
- I never actually learned to play very well
Good effing luck trying to present that as evidence to anyone mentally "able" to believe the flat earth... man, I dont wanna call it a theory... "guess" almost sounds too legitimate as well. Whatever. You get the point. Thanks!
And here you have the real issue. Flatists, religious extremists, xenophobes, they want the World to be simple and make sense to them.
Their demonstration attempts always revolve around arguments of ignorance, disbelief and calls to common sense.
Unfortunately, the World isn't simple, societies are complex and common sense is useless when it comes to understanding our surroundings
This is why we use science as a guiding light. It is the most powerful tool available to determine the truth of a claim.
Their demonstration attempts always revolve around arguments of ignorance, disbelief and calls to common sense.
Unfortunately, the World isn't simple, societies are complex and common sense is useless when it comes to understanding our surroundings
This is why we use science as a guiding light. It is the most powerful tool available to determine the truth of a claim.
Thank you! Because I am quite the opposite!
Just so we're clear, I made that comment assuming that your "my mind is not for rent" comment was a Rush lyric reference and not that I ever considered you to be arrogant.
Ok, not that it will make any difference to a flat earther as they are not swayed by logic but try this argument:
The average depth of the ocean is 12000-ish feet or 3.6km. This is about 0.0285% of the diameter of the earth. On a basketball, that proportion is equivalent to a layer of water 0.07mm thick (0.0027"). Dip a basketball in some water and then rotate it at 0.00694RPM. If it is wet then that is a scale equivalent to the oceans sticking to earth. 0.0027" is a very thin layer of water.
The nonsense they get on with wrt gravity is staggering. You can go out and buy machines that can actually measure it (Gravimeters) or rather the acceleration caused by it and they show that it behaves exactly as predicted. It's generally less at the poles than at the equator (because of the centripetal acceleration and the equatorial bulge), it varies due to differing densities of the earth's crust and decreases predictably with altitude.
Alkali Ike
Gold Supporting Member
- Jan 1, 2011
- 2,850
- 15,649
- Disclosures
- I never actually learned to play very well
Physics is all pseudo-science to them.
“You only believe that because it’s what you’ve been taught your whole life. Ie, brainwashing”.
What’s most disturbing to me is that if they truly beilieve that all pictures of space are cgi, no one ever been to space, the earth is flat etc, then that must mean they think that all of the millions upon millions of people who have dedicated their lives to the pursuit of science, astro-physics and the like, are deluded and wasting their lives studying lies and false realities.
Dang it!!! I'm usually pretty good at catching those types of things because I often use that same type of humor, but I completely missed that one! That was a *good* one! LOL!!!Just so we're clear, I made that comment assuming that your "my mind is not for rent" comment was a Rush lyric reference and not that I ever considered you to be arrogant.
That's gotta be one massive projector! You'd think someone would have located it by now! And it must have one helluva long-lasting light bulb!
Gravity is the weakest of the four fundamental forces, but it just keeps piling up with increasing mass and is always attractive. Mass being a volume property, it increases faster (r**3) than the force of gravity at the surface decreases (1/r**2), so bigger objects of similar density have stronger surface gravity than smaller ones.
Thankfully, most objects are approximately charge neutral so they don’t blow apart, but that means electrostatic forces mostly cancel in the far field.
If your “real world experiment” includes any object with a mass of about 6 x 10**24 kg, water will be held quite well to the surface.
Also, a human’s purposefully maintained ignorance of what the universe tells us of how it works doesn’t actually change how the universe works.
Otto
Last edited:
Whoa....whoa.....wait a sec.............ya mean no matter how long and hard I tell myself that Santa Claus is real, it doesn't mean there's actually a real guy in a red suit who lives at the north pole and has flying reindeer and he fits through the flue of my chimney once a year???
And speaking of which, exactly where does Santa Claus live in the minds of flat earthers?!
Last edited:
Whoa....whoa.....wait a sec.............ya mean no matter how long and hard I tell myself that Santa Claus is real, it doesn't mean there's actually a real guy in a red suit who lives at the north pole and has flying reindeer and he fits through the flue of my chimney once a year???
And speaking of which, exactly where does Santa Claus live in the minds of flat earthers?!
Dead-center of course, but don’t ask about where Antarctica is and where penguins live, that place doesn’t exist.
Antartica is the name for the 60FT tall wall that goes around the disk
