Link: walter.bislins.ch/bloge/?page=Knowledge+Database&qs=Experiment
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#101 | Author: Millikan, Fletcher | Type: Website | Keywords: Millikan, Experiment, Electron, Charge, Voltage, Electric Field, Gravity
The oil drop experiment was performed by Robert Andrews Millikan and Harvey Fletcher in 1909 to measure the elementary electric charge, the charge of the electron. Millikan received the Nobel Prize in Physics in 1923.
They balanced charged oil droplets between an electric field and gravity. The voltage needed to produce the electric field is proportional to the electric force acting on the oil dropplets. In equilibrium the electric field force is equal the gravitational force. Without gravity the experiment does not work.
#77 | Author: Harward University | Type: Website | Keywords: Cavendish, Experiment, Simulator, Gravity, Measuring, Gravitational Constant G, Original Paper
What it shows: The gravitational attraction between lead spheres. The data from the demonstration can also be used to calculate the universal gravitational constant G.
Experiments to determine the Density of the Earth by Henry Cavendish
Original paper describing the Cavendish experiment by the experimenter himself
Cavendish Experiment Simulator
This simulator written by can reproduce the results of the Cavendish Experiment from the Harward University. You can use this simulator to plan and calculate your own experiment.
See also:
Measurement of Newton’s Constant Using a Torsion Balance with Angular Acceleration Feedback
Measurements of the Newtonian constant of gravitation, G
#37 | 7/17/2019 | Author: Walter Bislin | Type: Website | Keywords: Calculator, Equations, WGS84, ECEF, Reference Ellipsoid, Coordinate Transformations
Calculator for WGS84 based transformations of vectors between ECEF cartesian and geodetic coordinates (lat,long,height). All equations are provided.
#33 | 7/17/2019 | Author: Walter Bislin | Type: Website | Keywords: Experiment, Report, Globe vs. Flat Earth, Curve, Refraction, Targets, Auto Level, Theodolite, GPS, GNSS, Computer Model, Bedford
The Rainy Lake Experiment was designed to show, how we can figure out the shape of the earth, Flat or a Globe, by observing and measuring a clever arrangement of targets over a distance of 10 km, taking terrestrial refraction into account and using modern equipment.
The experiment is an advanced version of the Bedford Level experiment executed in 1838. The Experiment leads to the conclusion that the earth must be a Globe with a radius of 6371 km.
#139 | 3/4/2020 | Author: Waa Sop | Type: Youtube | Keywords: ISS, GoPro, Experiment, Water, Microgravity, Gravity
Video recorded inside the International Space Station. Interesting experiment that shows us the behavior of fluids in a microgravity environment. The GoPro camera is put inside a floating sphere of water.
#76 | Author: Wikipedia | Type: Website | Keywords: Measuring, Earth's Rotation, Fall Experiments, Coriolis
Fallexperimente zum Nachweis der Erdrotation sind physikalische Experimente, mit denen ab etwa 1800 erstmals die Drehung der Erde um ihre eigene Achse empirisch nachgewiesen werden konnte. Die Erdrotation verursacht bei frei fallenden Körpern eine Ostablenkung gegenüber dem Lot. In der Systematik der heutigen Physik wird sie als Teilaspekt des Corioliseffektes behandelt.
#210 | 6/21/2021 | Author: The Thought Emporium | Type: Youtube | Keywords: Radiation, Cosmic Rays, Muons, Measurements, Experiment, Time Dilation, Special Relativity
Every second of every day thousand of cosmic rays pass through you, but we normally never notice. These particles are the result of high energy collisions in the upper atmosphere called air showers that are the result of some of the most extreme events in the universe flinging particles through deep space. Today we detect and measure these amazing particles and see how they can be used to directly test special relativity, catch smugglers and even find hidden passages in Egyptian tombs.
#125 | Author: Christian Hirt, Sébastien Guillaume, Annemarie Wisbar, Beat Bürki, Harald Sternberg | Type: PDF | Keywords: Refraction, Coefficient, Reciprocal, Zenith, Angles, Measurements, Study, Gauss
In geodesy, the coefficient of refraction k represents a common way to quantify terrestrial refraction. On the basis of reciprocal vertical angle measurements near Hannover (Germany), Carl Friedrich Gauss found an average value of the refraction coefficient k of approximately +0.13. The Gaussian value of k is well known to the surveyor as a frequently used standard value of terrestrial refraction.
The Gaussian refraction coefficient, though often suitable to describe refraction effects well above the ground, is not representative for the lower atmosphere. This region involves the surface layers to a height of about 30 m. Here, the temperature of the air strata, particularly its vertical temperature gradient, is strongly influenced by daily variations in the surface temperature. This may result in either negative or positive values of the refraction coefficient k near the ground with differences to the Gaussian value as large as two orders of magnitude.
The aim of the present work is to analyze the time behavior of the refraction coefficient under different weather conditions over grass surface at about 1.8 m height.
See also: Simulation of Atmospheric Refraction and Measuring Refraction using Dispersometry, Scintillometry and Image Analysis
#85 | Author: LPI, Lunar and Planetary Institute | Type: Website | Keywords: Moon, Landing Sites, Apollo, Missions, Landers, Rovers, Spacesuits, Experiments, Technical Documents, Reports, Equipments, Geology
Technical documents that describe exploration strategies, equipment, and geological tools used to explore the lunar surface, plus Apollo landing site descriptions and Apollo mission summaries.
Lunar Landers, Rovers, orbiting Command Modules, Spacesuits, Science Instruments, Apollo Lunar Surface Experiments Package (ALSEP), Geological Tools, Preliminary Science Reports, Landing Site Studies, Lunar Surface Operations