Category: Chemistry

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. 

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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.

Antifreeze

Antifreeze

Antifreeze

09/20/19

“How can we lower the freezing point of water?”

Water is known for its important freezing point. In fact, the entire metric temperature system is based off it! However, sometimes we may need to lower its freezing point. This can be accomplished through Antifreeze substances. Antifreeze is usually based off mixtures of water and either ethylene glycol (EGW) or propylene glycol (PGW). Antifreeze has plenty of applications, ranging from automotive engines to electronics cooling.

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Ducted Fume Hoods

Ducted Fume Hoods

Ducted Fume Hoods

09/15/19

“What is the most common type of fume hood?”

Fume hoods are a vital part of scientific labs. The most common type is usually a Ducted Fume Hood design where conditioned air is drawn from the lab space and siphoned into the outside atmosphere. The simplicity of the design has made it a staple of labs across the world.

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