# @stem_antics on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DWPiUWeEt34
- **Gondola URL:** https://gondola.cc/posts/61935795-stem-antics-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/755561e60b.jpg
- **Posted:** 2026-03-23T21:55:32.000+00:00
- **Account Owner:** Stem Antics (@stem_antics) — https://gondola.cc/stem_antics

## Caption

Molten silver is poured into a calibrated shot tool designed to break a continuous liquid stream into discrete droplets. As gravity pulls the metal downward, surface tension minimizes each droplet’s surface area, driving it toward a near-spherical shape. This is the same physical principle that forms raindrops.

The key to uniform pellet formation is managing three variables: temperature, flow rate, and cooling environment. The silver must be hot enough to remain fluid during droplet formation, but not so hot that it deforms excessively on impact. The flow rate determines droplet size, while the geometry of the tool ensures consistent separation.

As each droplet falls, it rapidly cools and transitions from liquid to solid. This phase change locks in the spherical geometry, producing pellets with consistent mass and shape. In industrial settings, this process is optimized for applications ranging from metal refining to additive manufacturing feedstock.

This is materials science, thermodynamics, and fluid mechanics working together in real time.

What variable do you think matters most for getting perfectly uniform pellets: temperature, flow rate, or cooling speed? Explain your reasoning in the comments. If this helped you see physics differently, share it with someone and remix with your own explanation.

#STEM #MaterialsScience #Metallurgy #PhysicsInAction #Engineering

## Stats

- **Views:** 128,455
- **Likes:** 1,019
- **Shares:** 0
- **Comments:** 6

## Tags

engineering, stem, materialsscience, physicsinaction, metallurgy

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