Category: Physics

Porosity

Porosity

Porosity

09/24/19

“How can we measure how porous an object is?”

If an object is porous it means that it has empty space in it. The measure of this empty space is known as the Porosity, and can be found on a sliding scale from zero percent to one hundred percent. 

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The Physical Reason for Why Overheating Lowers Solar Panel Efficiency

The Physical Reason for Why Overheating Lowers Solar Panel Efficiency

The Physical Reason for Why Overheating Lowers Solar Panel Efficiency

08/05/19

“Why does physics dictate that overheated solar panels will have lower efficiencies?”

The amount of solar energy that can be created by a solar panel is dependent on the difference in voltage between the electrons at the rest state and the activated state. However, as a solar panel becomes hotter, the rest state will be pushed outwards while the active state will be held constant. This results in a decrease in voltage and by extension power output. This is The Physical Reason for Why Overheating Lowers Solar Panel Efficiency.

How Radiative Forcing is Causing Climate Change

How Radiative Forcing is Causing Climate Change

How Radiative Forcing is Causing Climate Change

07/27/19

“How is radiative forcing causing climate change?”

Radiative forcing is the primary driver of Earth’s climate. And since the Earth is trapping more heat, its radiative forcing is increasing and making temperatures hotter. This is  How Radiative Forcing is Causing Climate Change.

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Brine

Brine

Brine

06/19/19

“What happens when water has a super-high concentration of salt?”

It is hard for humans to digest water with salt mixed in. So when water has an ultra-high concentration of salt, it takes on interesting properties. The salinity of this Brine can be used for food-processing, de-icing roads and structures, and as a refrigeration fluid. Brine is one of the myriads of chemicals that allows our modern world to work.

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Brine from Desalination

Brine from Desalination

Brine from Desalination

06/16/19

“Why is Brine created from desalination?”

Desalination is one of the lifelines for many water-poor countries, whether it be in the Middle-East, South Asia, or Western North America. However, during the process of creating more drinkable water, a portion of brine is also created as a byproduct. One of the most pressing challenges for policy-makers, scientists, and engineers is to find out what to do with this Brine from Desalination.

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Laser Interferometers

Laser Interferometers

Laser Interferometers

06/14/19

“How do Laser Interferometers work?”

Laser Interferometers work as follows: A coherent laser beam will be emitted from a source. The beam will then hit a mirror at an angle to its wave of propagation, causing it to split into parts parallel and perpendicular to the original travel. These will be reflected by mirrors, and will head back to the original mirror where they will combine and interfere. This new wave will travel to a detector, where the interference pattern will be picked up and can be analyzed to measure small displacements.

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http://www.ligo.caltech.eduImage credit