In 1989, NASA, in collaboration with ALCA, conducted the Clean Air Study to determine the effectiveness of houseplants in removing airborne toxins like VOCs within sealed environments, relevant to space stations. 

The research demonstrated that specific plants could indeed absorb these pollutants in controlled conditions. 

However, subsequent reviews have clarified that the study's findings are often misapplied to typical indoor settings, which benefit from ventilation and require an impractical number of plants for comparable air purification. 

While the original research highlighted the potential of plants for VOC removal, its applicability to real-world homes and offices for significant air quality improvement is limited. 

Despite this, houseplants still offer other advantages, such as aesthetic appeal and stress reduction. The study, while not a solution for primary air purification in everyday environments, provided initial insights into plant-based air filtration for enclosed spaces.

Today, we’re diving into something we all use but rarely think about—elevators!

Have you ever wondered how elevators decide which floor to go to first? Or why sometimes they feel slow, and other times, they arrive like magic?

That’s all thanks to something called the Elevator Algorithm—a set of rules that elevators follow to move efficiently.

And today, we’ll explore how these algorithms work, different types of elevators, and how they impact our daily lives.

So, buckle up—or, well, hold onto that handrail—because we’re about to take this conversation to the next level!