Experiments supporting Newton's gravitational theory

AI Thread Summary
Experiments supporting Newton's gravitational theory include Cavendish's lead spheres and advanced measurements by Eric Adelberger's group, which focus on small-scale gravitational interactions. Scanning probe instruments like AFM and STM may experience drift due to gravitational attractions from surrounding large structures, although this is not a primary concern in scanning microscopy. Other significant experiments include large-scale tower experiments and Venus radar ranging for broader gravitational measurements. The discussion highlights the variety of experimental approaches to validate gravitational theory. Overall, the conversation emphasizes the importance of both small and large-scale experiments in understanding gravitational forces.
Dilema
Messages
37
Reaction score
1
Apart from Cavendish two lead attracting spheres experiment are there any other experiments (done in lab scale) that support Newton's gravitational theory?
Dose scanning prop instruments (AFM, STM) suffers from drift due to gravitational attractions between the instrument mass (not the tip mass, which is very small) and large buildings around?
 
Physics news on Phys.org
Many experiments, but not scanning microscopy. Eric Adelberger's group at Washington has some of the best measurements on small scales. Large scales have tower experiments and larger still you have Venus radar ranging.
 
Thanks Vanadium 50.
Very intersting
 

Thread '1:1 versus 2:1 Mechanical Advantage debate'

The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
View full post »

Thread 'Average velocity as a weighted mean'

Hello everyone, Consider the problem in which a car is told to travel at 30 km/h for L kilometers and then at 60 km/h for another L kilometers. Next, you are asked to determine the average speed. My question is: although we know that the average speed in this case is the harmonic mean of the two speeds, is it also possible to state that the average speed over this 2L-kilometer stretch can be obtained as a weighted average of the two speeds? Best regards, DaTario
View full post »

Thread 'Newton's first law?'

Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
View full post »

Similar threads

Casimir Effect experiment and implications on motion theory
Replies
34
Views
3K
I A "continous" gravitational field formula r=0 to infinity
Replies
16
Views
593
Thought experiment: Origin of inertia is gravitational?
Replies
14
Views
4K
Find the attractive force of gravity between two objects
Replies
8
Views
2K
Newtons Law on Gravitational Force
Replies
16
Views
7K
Acc to Newtons gravitational theory f=GmM/r^2and the distance r is
Replies
6
Views
2K
B Measuring a change in gravity - thought experiment question
Replies
8
Views
1K
I Can 2 spheres orbit each other say inside ISS?
Replies
8
Views
2K
A MOND Theory Primer: Stacy McGaugh's Research Program Explored
Replies
11
Views
4K
B Help Scaling Gravity Simulation
Replies
7
Views
2K

Hot Threads

Recent Insights

Back
Top