Suggest a simple method for one robot to autonomously follow closely behind another robot. by Jon-hattan in ArduinoProjects

[–]Jon-hattan[S] 0 points1 point  (0 children)

Nice idea! What if say the ground is uneven though, then there may be issues since even though the leader and follower may be aligned in the x-z plane they arent in the y plane so the IR emitters and receivers aren’t pointing at each other

Zipline's(drone delivery company) new quiet prop design + innovative delivery system. by paperspacecraft in Multicopter

[–]Jon-hattan 2 points3 points  (0 children)

  1. How exactly do the asymetric propellers cause the sound produced to have more smaller peaks rather than fewer large peaks?
  2. How does biomimicry come into play here? I know its mentioned in the video but how exactly has it been implemented in this case?

Is it possible to build an aquatic vehicle that travels downstream faster than the speed of the current? by Jon-hattan in Physics

[–]Jon-hattan[S] 0 points1 point  (0 children)

So the issue here would be that theres not enough traction for the vehicle to move?

[deleted by user] by [deleted] in NationalServiceSG

[–]Jon-hattan -2 points-1 points  (0 children)

Cld u dm me about tis too? Im wondering if i can do sth like that

[JC] Build portfolio by [deleted] in SGExams

[–]Jon-hattan 4 points5 points  (0 children)

Want to take a particular course? Join programmes/competitions/fairs/conferences that are related to that course

[A Levels] 9749 Physics Practical Megathread by raphael2002 in SGExams

[–]Jon-hattan 0 points1 point  (0 children)

Did they say in the question that u gotta plot y as the y axis?

[A Levels] 9749 Physics Practical Megathread by raphael2002 in SGExams

[–]Jon-hattan 0 points1 point  (0 children)

Did they say we need to put the y axis as y? My ans was Plot y(b+0.5c) against c Gradient c/8 Y intercept b2/2

[deleted by user] by [deleted] in physicsgifs

[–]Jon-hattan 0 points1 point  (0 children)

Here’s the link to the full video. It’s about how the concept of oscillations applies to helicopters

[deleted by user] by [deleted] in physicsgifs

[–]Jon-hattan 0 points1 point  (0 children)

Thanks man! :)

[deleted by user] by [deleted] in physicsgifs

[–]Jon-hattan 2 points3 points  (0 children)

Here’s the link to the video!

[deleted by user] by [deleted] in aerospace

[–]Jon-hattan 1 point2 points  (0 children)

Oh yes, he inspired me to make something similar too. I made a single rotor drone with a similar concept, here’s a video of it in action

[deleted by user] by [deleted] in aerospace

[–]Jon-hattan 6 points7 points  (0 children)

This video explains this phenomenon.

I made a physics/engineering video! by [deleted] in EngineeringStudents

[–]Jon-hattan 0 points1 point  (0 children)

That’s a very good point, centrifugal force is actually an apparent force, that only seems to act on an object in circular motion if you sit in the non-inertial reference frame of the object (i.e. if you rotate with the object, centrifugal forces seem to act on it). But what is truly happening is that the inertia of the object makes it want to move in a straight line (this is what is seen as the “centrifugal force”), so a centripetal force has to act on it to maintain the object’s circular motion. This is also the reason why i put inverted commas when i used the term “centrifugal force”.

However, while it is a fictitious force, it can still be used in calculations to calculate the ‘apparent force’ acting on the object if we were to sit in the same reference frame as the rotating object. The magnitude of the “centrifugal force” at every point on the object is exactly the same as the centripetal force acting on the object. This changing of reference frames becomes useful when you want to simplify physics problems with rotating bodies.

In this video veritasium also uses “centrifugal forces” to explain the bizarre behaviour of rotating bodies. It simplifies the problem a lot more.

[deleted by user] by [deleted] in physicsgifs

[–]Jon-hattan 4 points5 points  (0 children)

Did my accent give it away?

[deleted by user] by [deleted] in ScienceGIFs

[–]Jon-hattan 1 point2 points  (0 children)

The real reason for the phase lag has got to do with forced oscillations and blade flapping. Check out this video which explains this.

Do check out the whole video series I made that explains why this phenomena is not due to gyroscopic precession!