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ENRICHMENTTHE 102 PLATFORM
Daily picks · 2026-09-25 · Central TimeSwipe to discover

Evaporation can cool what it leaves behind.

When higher-energy molecules escape from a liquid, the liquid that remains can cool.

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What has words but never speaks on its own?

You have 90 minutes and three equal tasks. Time per task?

You can look straight at something and miss it.

Focusing on one task can make you miss an unexpected event in plain sight: inattentional blindness.

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Your first move on a big project?

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A rainbow is light taking different paths.

Water droplets refract and internally reflect sunlight. Different wavelengths bend by different amounts, separating the colors.

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Pick your challenge.

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Your mirror has a geometry trick.

For a flat mirror, the angle of reflection equals the angle of incidence, measured from a line perpendicular to the surface.

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Can your belief survive its strongest opponent?

In On Liberty, Mill argues that a belief needs to face serious objections. Winning against a weak argument proves very little.

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How many outreach attempts model four signed leases under those assumptions?

A fictional plan assumes 20% of outreach attempts become qualified conversations, 50% become completed tours, and 20% of tours become signed leases.

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A shadow can tell you where the light is.

Light travels in straight lines through a uniform medium. An opaque object blocks some of it, creating a shadow.

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