Physics Insight
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Hot Water Balloon
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Skateboard
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Ping
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Measure Twice, Cut Once
![](https://imgs.xkcd.com/comics/measure_twice_cut_once.png "\")
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100% All Achievements
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Hiking
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Alert Sound
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Neighbor-Source Heat Pump
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Trojan Horse
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Bridge Types
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Check Engine
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Archaea
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Mass Spec
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Drafting
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Baker’s Units
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Renormalization
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Sail Physics
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Modern
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Deposition
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Pascal’s Law
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Globe Safety
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About 20 Pounds
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Unstoppable Force and Immovable Object
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Jupiter Core
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Chess Position
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PhD Timeline
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Tennis Balls
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Air Fact
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Anchor Screws
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de Sitter
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The Roads Both Taken
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Anachronym Challenge
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Push Notifications
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Tariffs
![[later] I don't get why our pizza slices have such terrible reviews; the geotextile-infused sauce gives the toppings incredible slope stability!](https://imgs.xkcd.com/comics/tariffs.png)
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Stargazing 4
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Decay Chain
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Orogeny
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Terror Bird
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Rock Identification
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SawStart
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Cosmic Distance Calibration
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Square Units
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Lungfish
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Planet Definitions
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Off By One
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Water Balloons
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Omniroll
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Water Damage
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Tall Structures
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