Stuff To Blow Your Mind

From the Book of Sand

May 12, 2026
They wander through sand as metaphor and math, from Borges' Book of Sand to counting grains. Sci fi and real tech collide with sand-based defenses, lunar and Martian regolith bricks, and electrified dunes on Titan. Glass-making, lightning-formed fulgurites, and their use as paleo-storm records get vivid treatment. The show blends scientific history, material science, and speculative engineering.
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ANECDOTE

Personal Beach Love Hate Relationship

  • Robert Lamb shares personal beach habits and feelings about sand, enjoying sand at the beach but disliking it where it doesn't belong.
  • He describes walking on Bahamian sand, wearing flip-flops, and preferring sand when it's contextually appropriate.
INSIGHT

Sand Is A Size Category Not A Single Substance

  • Sand varies widely by particle size, composition, and behavior, and 'sand' is technically a particle-size term.
  • Joe McCormick notes hourglass material differs; sugar-sized particles might meet size but wouldn't be called sand.
INSIGHT

Sand As Effective Ballistic Armor

  • Compacted sand absorbs and dissipates projectile energy extremely well, sometimes shattering projectiles via friction.
  • A 2016 study showed silica sand blocks can absorb >85% impact energy and resist better at higher projectile speeds.
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