Planck's constant, torsion, and space-time defects

1989 ◽  
Vol 28 (11) ◽  
pp. 1333-1340 ◽  
Author(s):  
D. K. Ross
Keyword(s):  
Space Time ◽  
Planck’S Constant ◽  
Constant Torsion ◽  
Planck's Constant

Gauge potential decomposition, space‐time defects, and Planck’s constant

1994 ◽  
Vol 35 (9) ◽  
pp. 4463-4468 ◽  
Author(s):  
Yi‐Shi Duan ◽  
Sheng‐Li Zhang ◽  
Sze‐Shiang Feng
Keyword(s):  
Space Time ◽  
Gauge Potential ◽  
Planck’S Constant ◽  
Decomposition Space ◽  
Planck's Constant

scholarly journals Discrete Space-Time on the Manifestation of Mass

2018 ◽  
Vol 14 (3) ◽  
pp. 31
Author(s):  
Rickey W. Austin
Keyword(s):  
Taylor Series ◽  
A Priori ◽  
Space Time ◽  
Discrete Space ◽  
Planck’S Constant ◽  
First Order ◽  
Elementary Charge ◽  
Planck's Constant ◽  
Base Units

Schwarzschild’s Metric (Schwarzschild 1916) under specific conditions provides a Taylor series first order discrete length when transforming coordinates between observers. Exploring the consequences of the discrete length produces an a priori result of quantized space-time. Deriving base units from the quantization of space-time and applying elementary charge, exact formulations for the observed Schwarzschild’s discrete units are obtained. These units are equivalent to Planck’s mass, length, time, momentum, force, energy and Planck’s constant (NIST CODATA 2014).

Heisenberg, Bohr, Robertson, and the Uncertainty Principle

2020 ◽  
pp. 133-156
Author(s):  
Jim Baggott
Keyword(s):  
Quantum Mechanics ◽  
Uncertainty Principle ◽  
Laboratory Experiments ◽  
Space Time ◽  
Spectral Lines ◽  
Planck’S Constant ◽  
Classical Space ◽  
Planck's Constant

From the outset, Heisenberg had resolved to eliminate classical space-time pictures involving particles and waves from the quantum mechanics of the atom. He had wanted to focus instead on the properties actually observed and recorded in laboratory experiments, such as the positions and intensities of spectral lines. Alone in Copenhagen in February 1927, he now pondered on the significance and meaning of such experimental observables. Feeling the need to introduce at least some form of ‘visualizability’, he asked himself some fundamental questions, such as: What do we actually mean when we talk about the position of an electron? He went on to discover the uncertainty principle: the product of the ‘uncertainties’ in certain pairs of variables—called complementary variables—such as position and momentum cannot be smaller than Planck’s constant h (now h / 4π‎).

scholarly journals Development and Students’ Perception on Teaching Aids of Photoelectric Effect Experiment Using Leds

2019 ◽  
Vol 7 (3) ◽  
pp. 253-261
Author(s):  
Hartono Bancong ◽  
Ana Dhiqfaini Sultan ◽  
Subaer Subaer ◽  
Muris Muris
Keyword(s):  
Cost Effective ◽  
Photoelectric Effect ◽  
High Price ◽  
Planck’S Constant ◽  
Teaching Aids ◽  
Modern Physics ◽  
User Friendly ◽  
Planck's Constant ◽  
D Model ◽  
Effect Experiment

The photoelectric effect experiment generally uses a very sophisticated and expensive apparatus. Some high schools and even universities in Indonesia cannot afford to conduct this experiment because of the high price of the apparatus. The purpose of this study was to develop a user-friendly, and cost-effective teaching aids which can be used to demonstrate the concepts of modern physics related to the photoelectric effect. The stages of this study employed the Four-D model, namely define, design, develop, and disseminate. Based on experts and practitioner evaluation, the developed teaching aids and practicum devices of photoelectric effect experiment were found to be valid and reliable. The results of the experiment by using this developed teaching aids of the photoelectric effect showed that there is a linear relationship between the stopping potential and the frequency of light emitted by the LED. These results are consistent with Millikan's experimental results, the first physicist who succeed in proving Einstein's hypothesis of the photoelectric effect, that in the photoelectric effect the stopping potential does not depend on the intensity of light but depends only on the frequency of light. In this study, the Planck’s constant value obtained is 6.408x10-34 J.s. Although this value is slightly smaller than the accepted value of Planck's constant that is 6.626x10-34 J.s, it is good enough considering the instrumental error occurred during the measurement of current and voltage. Furthermore, the students’ perception of the developed teaching aids and practicum devices of the photoelectric effects experiment are 74.9% (good) and 80.2% (very good), respectively. This indicates that the photoelectric effect experiment teaching aids and practicum devices that have been developed can be used to demonstrate and prove the concepts of modern physics related to the photoelectric phenomena correctly.Keywords: Teaching Aids, Photoelectric Effect, Students’ Perception

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