Sylvano: “What type of pendulum is a Bravais pendulum?” ChatGPT: “A Bravais pendulum is a theoretical construct, not a physical pendulum. It is used in the study of crystal lattices to describe the arrangement of atoms or molecules in a repeating pattern, and was named after the French physicist Augustin-Louis Bravais. The idea of a Bravais pendulum is used to demonstrate the symmetry and periodicity of crystal lattices, and has no physical equivalent as a swinging pendulum.”
sylvano > On 4 Feb 2023, at 10:58 pm, Nic English <[email protected]> wrote: > Keeping in the swing of things … > ChatGPT is open currently. > > Me: What is a Bravais pendulum? > > Chat GPT repeated the crystallography statement David shared earlier. > > So far the percentages are still weighed against the facts. Being told > something is incorrect and being provided accurate information has so far > failed to correct its response. > > Asking ‘ What are the different types of pendulums and how do they differ?’ > generated a list of 5: > Simple pendulum: This is a mass hanging from a string or rod that swings back > and forth under the influence of gravity. The motion of a simple pendulum is > determined by its length and the strength of the gravitational field. > Compound pendulum: This is a pendulum that has a rigid body, such as a rod or > a solid sphere, that swings about a pivot point. The motion of a compound > pendulum is determined by its mass, length, and the distribution of mass > around the pivot point. > Foucault pendulum: This is a pendulum designed to demonstrate the Earth's > rotation by swinging in a plane that appears to rotate over time. The > pendulum's plane of swing changes continuously because of the rotation of the > Earth, which causes the pendulum to trace out a curve in space. > Physical pendulum: This is a pendulum that consists of a rigid body swinging > about a pivot point, such as a weight on a lever or a rotating wheel. The > motion of a physical pendulum is determined by its moment of inertia and the > strength of the gravitational field. > Torsion pendulum: This is a pendulum in which a small weight is suspended > from a thin wire or rod, and the motion of the pendulum is caused by the > twisting and untwisting of the wire or rod. The motion of a torsion pendulum > is determined by the tension in the wire or rod, the angle of twist, and the > mass of the weight. > Each type of pendulum has its own unique properties and is used for different > purposes, ranging from demonstrating the principles of physics to making > precise measurements in scientific experiments. > > Poor old Bravais failed to make the cut, just not unique enough it seems. > > Asked about the utility of pendulums for dowsing came back with a safe, > better off using > > ‘established methods, such as drilling, remote sensing, and geophysical > surveys…’ > > Regards > Nicholas English > Sent from A phone |-) > > There will always be a market for tin foil hats while we have electricity ... > do we have electricity?! > > >> On 4 Feb 2023, at 5:06 pm, David <[email protected]> wrote: >> >> We now know. >> >> Two readers of this thread have emailed me with ChatGPT's responses to their >> their own re-presentation of Bernard's query. And here's a summary. >> ----------------- > _______________________________________________ > Link mailing list > [email protected] > https://mailman.anu.edu.au/mailman/listinfo/link _______________________________________________ Link mailing list [email protected] https://mailman.anu.edu.au/mailman/listinfo/link
