9 citations · 46 across the 12 of their papers we have counts for
12 papers
Visualisation of matrix product: Using light to clarify an abstract mathematical concept
Jorge Pinochet, Walter Bussenius Cortada
Teaching the noncommutativity of the product of matrices to high school or college level students is a difficult task when approached from a purely formal perspective. The aim of t…
The little robot, black holes, and spaghettification
Jorge Pinochet
The tidal forces generated by a black hole can be so powerful that they cause unlimited stretching, known as spaghettification. A detailed analysis of this phenomenon requires the…
Three easy ways to the Hawking temperature
Jorge Pinochet
In this work, three heuristic derivations of the Hawking temperature are presented. The main characteristic of these derivations is their extreme simplicity, which makes them easil…
Graphic relation between amplitude and sound intensity level
Jorge Pinochet
We present a simple experiment that allows us to demonstrate graphically that the intensity of sound waves is proportional to the square of their amplitude, a result that is theore…
Classical Tests of General Relativity Part II: Looking to the Past to Understand the Present
Jorge Pinochet
The objective of this second part of the work is to present heuristic derivations of the three classical tests of general relativity. These derivations are based on the Einstein eq…
Classical Tests of General Relativity Part I: Looking to the Past to Understand the Present
Jorge Pinochet
Einstein's theory of general relativity (GR) provides the best available description of gravity. The recent detection of gravitational waves and the first picture of a black hole h…
Hawking for beginners: A dimensional analysis activity to perform in the classroom
Jorge Pinochet
In this paper we present a simple dimensional analysis exercise that allows us to derive the equation for the Hawking temperature of a black hole. The exercise is intended for high…
Brown dwarfs and the minimum mass of stars
Jorge Pinochet
Stars form from large clouds of gas and dust that contract under their own gravity. The birth of a star occurred when a fusion reaction of hydrogen into helium has ignited in its c…
Five misconceptions about black holes
Jorge Pinochet
Given the great interest that black holes arouse among non-specialists, it is important to analyse misconceptions related to them. According to the author, the most common misconce…
"Black holes ain't so black": An introduction to the great discoveries of Stephen Hawking
Jorge Pinochet
Between 1974 and 1975, Stephen Hawking revolutionized the world of physics by proposing that black holes have temperature, entropy, and evaporate gradually. The objective of this a…
The Hawking temperature, the uncertainty principle and quantum black holes
Jorge Pinochet
In 1974, Stephen Hawking theoretically discovered that black holes emit thermal radiation and have a characteristic temperature, known as the Hawking temperature. The aim of this p…
Einstein ring: Weighing a star with light
Jorge Pinochet, Michael Van Sint Jan
In 1936, Albert Einstein wrote a brief article where he suggested the possibility that a massive object acted as a lens, amplifying the brightness of a star. As time went by, this…