lordoftheselands said:
But be sure to hold your breath, so you're in a vacuum...Ibix said:
Ah yes - I was going to ask @lordoftheselands why he thought vacuum was relevant, but got distracted and forgot.berkeman said:But be sure to hold your breath, so you're in a vacuum...
...but, one could argue, not a force. I'm guessing that's the fact behind the "illusion" wording in the OP.Dale said:
This is a very ambiguous question. WHAT forces, specifically?lordoftheselands said:
phinds said:
My answer would be that there are no forces between objects separated in a vacuum. Only interactions between the field an object is immersed in and the object. It looks a lot like two objects attract each other in certain cases but it is really the fields of each interacting with the other object not the objects directly or even simultaneously.phinds said:
It seems like the <anything> propagating through a vacuum is your sticking point, correct? Do you acknowledge that we see light from the Sun that propagates through the vacuum of space? Do you acknowledge that gravitational forces hold our Solar System together through the vacuum of space?lordoftheselands said:
You sound like someone from the twelfth century!lordoftheselands said:
Orodruin said:
”It seems magic” is not an argument. It is a personal opinion, and on a science forum it is a very poorly phrased opinion.lordoftheselands said:
berkeman said:But be sure to hold your breath, so you're in a vacuum...
When I hold my breath for too long, I kind of forget things too. Maybe that's @lordoftheselands issue as well...Ibix said:
Feynman talks about this with magnets which you may find interesting.lordoftheselands said:
At the risk of inviting a personal theory, is there something about adding - say, some air - between those two objects that makes it more logical to you? Are you thinking that there needs to be air between some atoms for those atoms to be attracted to each other?lordoftheselands said:
Certainly! What is your school math level (grade school? high school? ) and your preferred reading platform? (Paper? eBook?)lordoftheselands said:
It may be useful to explain what is your recipe to decide if something is an illusion or not. You know that your existence may be an illusion too for me. How do I know that you really asked this question? It seems illogical to me that someone asks questions even though I cannot hear them. I need to make sure that you really exist otherwise it will be like talking to myslef. How do YOU know that everything around you exists and is not just an illusion? Your senses may be deceiving you, they may all be illusions. Where do you draw the line? Logic does not help.lordoftheselands said:
Certainly. Here you go: University Physics with Modern Physics 15th Editionlordoftheselands said:
Gravitation depends on mass. There is nothing illusory about mass since it is a physical quantity. This can be visualized by the object bending the space around it so that other objects "fall" into it.lordoftheselands said:
Is that falling under the force of gravity?osilmag said:
That's why I put it in quotations. Perhaps I could have worded it better.PeroK said:
Forces of attraction refer to the physical phenomenon where objects are pulled towards each other due to the presence of a force. This force can be gravitational, electromagnetic, or nuclear in nature.
There is overwhelming evidence from scientific experiments and observations that support the existence of forces of attraction. For example, the orbit of planets around the sun is a result of the gravitational force of attraction between them.
While there are various theories and explanations for forces of attraction, such as the exchange of particles or the curvature of space-time, the fact remains that objects do experience a pull towards each other, which can be measured and observed.
No, forces of attraction are not just an illusion. They are a fundamental aspect of the physical world and play a crucial role in the behavior of matter and the functioning of the universe.
Yes, forces of attraction have numerous practical applications in our daily lives. For example, the electromagnetic force is responsible for the functioning of electronic devices, while the gravitational force is essential for keeping objects in place on Earth and for the formation of celestial bodies.