Category: Chemistry

Invisible Solar Panels

Invisible Solar Panels

Invisible Solar Panels

01/07/21

“How can we create invisible solar panels?”

Building-mounted solar panels are one of the hottest topics in the energy world right now. These rectangular panels absorb photons from the sun and convert them to useful electrical energy without directly emitting any greenhouse gases. However, their opaque appearance automatically prevents them from ever being attached in front of windows.

But does it have to be this way?

Researchers at Incheon University have changed the formula for making solar panels. By replacing the typical semiconducting materials used to generate electricity with highly transparent Titanium Dioxide and Nickel Oxide, allowing for photons to pass directly through, making it a material useful for windows! While the efficiency rate is only at 2%, given time and energy research will make these Invisible Solar Panels strong enough to generate electricity at much higher rates!

Image credit scitechdaily.com

Why Accurate Air Quality Measurement Is Critical for Public Health

Why Accurate Air Quality Measurement Is Critical for Public Health

Why Accurate Air Quality Measurement Is Critical for Public Health

09/16/20

“Why is accurate air quality measurement so critical for public health?”

Poor air quality is one of the leading causes of death and health problems worldwide. Preventative measures such as closing windows and obtaining N95 masks are critical to establishing resilience against this. However, public coordination of these efforts can only happen if an accurate estimation of what’s happening outside is measured. This is Why Accurate Air Quality Measurement Is Critical for Public Health.

The Correlation Between Carbon and Pollution Emissions

The Correlation Between Carbon and Pollution Emissions

The Correlation Between Carbon and Pollution Emissions

04/09/20

“What is the correlation between carbon and pollution emissions?”

 

When many think of the word “emissions” either CO2 or particulate matter come to mind. Although it would be easy to think of these as separate phenomena, they are actually closely intertwined, since noxious chemicals can release both at once. This is why there is a Correlation Between Carbon and Pollution Emissions.

Why Is Bronze Harder Than Stone?

Why Is Bronze Harder Than Stone?

Why Is Bronze Harder Than Stone?

02/24/20

“Why is bronze stronger than stone?”

 

The transition from stone to bronze marked humanity’s transition from the caves to civilization. This was brought by the ability to use this stronger material allowed for the creation of more complex machinery and structure. But what makes bronze stronger than stone? Well, it all comes down to the fact that it has a more compact molecular structure, giving it more strength! This is Why Bronze Is Harder Than Stone.

Suspended Solids

Suspended Solids

Suspended Solids

11/02/19

“What happens when solids particles do not dissolve in water?”

 

Many types of solid particles are able to be dissolved in water. But often this is not always the case. Some particles are able to stay suspended in water, contaminating its purity. These Suspended Solids are often fine particulate matter, such as the ones from wildfire air pollution, that have settled onto the water. These can be purified either through the use of a water filter or sedimentation.

 

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P.M 2.5

P.M 2.5

P.M 2.5

09/29/19

“What is the type of air pollution that makes skies blurry?”

One of the most famous visuals of the effects of air pollution are the blurry and disrupted skies. Whether it be from the urban centers of India, the smokestacks of Chinese factories, or the wildfires in California. One of the main causes of this is from particulate matter the size of 2.5 microns, commonly referred to as P.M 2.5. P.M 2.5 arises from burning materials and can travel deeply into the lungs of humans, causing intense medical damage. 

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. 

Image credit https://i.ytimg.com

Single-use Plastics

Single-use Plastics

Single-use Plastics

09/23/19

“What exactly are single-use plastic and why are they so bad?”

Plastic is a very useful material. It’s flexible, fairly non-reactive, and strong, making it applicable for single-use grocery bags. However, the fact that Single-use Plastics are not recyclable and biodegradable means that they will end up in a land-fill and release toxic chemicals into the environment. To solve this crisis, a new generation of thinkers will have to come up with innovative policy and technical solutions. This could be anyone, from a regular Joe to someone whose name rhymes with Narina.