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Presentations in physics

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26 janv. 2026

Revolution in Cosmology: DESI Challenges Constant Dark Energy

Presentation - 2 pages - Physics

Recent observations by the Dark Energy Spectroscopic Instrument (DESI) suggest that dark energy may not be constant, challenging the ?CDM model and our understanding of the universe.

21 oct. 2025

Understanding Airplane Flight: Forces and Laws

Presentation - 2 pages - Physics

Explore how airplanes take off, stay in the air, and land by understanding the properties of air, Newton's laws of motion, and the four forces of flight.

04 sept. 2025

Photovoltaic Cell Efficiency Explained

Presentation - 3 pages - Physics

Understanding how photovoltaic cells convert solar energy into electricity and the factors affecting their efficiency.

10 juin 2023
pdf

Cyclones Studies Through Soap Bubbles

Presentation - 53 pages - Physics

This document is a presentation aid for a talk on cyclones studies through soap bubbles.

10 juin 2023
pdf

Black Holes

Presentation - 78 pages - Physics

This document is a presentation aid for a lecture about black holes.

30 avril 2011

geothermal energy

Presentation - 1 pages - Physics

Présentation orale de la géothermie. Ce document en anglais résume la physique utilisée pour produire de la chaleur ou de l'électricité à partir de la chaleur récupérée dans la croute terrestre. Il se pose aussi la question de son application au uk.

18 nov. 2009
ppt

Innovative train technology: Maglev super speed system

Presentation - 25 pages - Physics

The super speed Maglev system Trans-rapid is an innovative track-bound transportation system for passengers and high-value cargo traffic at speeds between 300 to 500 km/hour. It is the first fundamental innovation in railroad technology since the construction of the first railroad. So as you can...

18 juin 2009
ppt

Concrete technology

Presentation - 410 pages - Physics

The presentation is based on concrete and starts with the objectives of the presentation and moves onto a review of the composition of concrete. It then moves towards RCC structures and covers points like methods used in the designing of RCC structures, the codes used and the functions of...

08 juin 2009
ppt

Improving the power factor of a circuit

Presentation - 51 pages - Physics

The power factor of a circuit implies that how efficiently power is being consumed or utilized in the circuit. The greater the power factor of a circuit, greater is the ability of the circuit to utilize apparent power. Thus if the power factor is 0.5, it means that 50% of the power is being...

22 mai 2009
ppt

A presentation on the hydrodynamic modeling of circulating fluidized bed

Presentation - 42 pages - Physics

Fluidization is an operation through which fine granular solids are transformed into a fluid like state through contact with a gas or liquid. An increase in the gas velocity through a granular solid brings about changes in the mode of gas solid contact in many ways. Among the several flow regimes...

12 mai 2009
ppt

Co-generation (18 slides)

Presentation - 5 pages - Physics

In this presentation you will learn a bit about Co-generation. It is the concept of producing two forms of energy from one fuel. Co-generation (also combined heat and power or CHP) is the use of a heat engine or a power station to simultaneously generate both electricity and useful heat. It is a...

28 juil. 2008
ppt

Applications of aqueous equilibria

Presentation - 90 pages - Physics

When AgNO3 is added to a saturated solution of AgCl, it is often described as a source of a common ion, the Ag+ ion. By definition, a common ion is an ion that enters the solution from two different sources. Solutions to which both NaCl and AgCl have been added also contain a common ion; in this...

28 juil. 2008
ppt

Equilibrium: Heat energy

Presentation - 90 pages - Physics

Heat is energy flowing from a high temperature object to a low temperature object. When the two objects are at the same temperature, there is no net flow of energy or heat. That is why a covered cup of coffee will not be colder than or warmer than the room temperature after it has been in there...

13 nov. 2007
ppt

Generating Electricity

Presentation - 10 pages - Physics

The blade of a turbine is tilted an angle. Movement of the air is channeled creating low and high pressures on the blade that force it to move. The blade is connected to a shaft which in turn is connected to an electrical generator. The mechanical energy of the turning blades is changed into...