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Demolishing a bridge can be harder than designing one because crews must manage unknown existing conditions, live shipping, environmental limits, and ever-changing load paths as pieces are removed, which forces careful sequencing and temporary measures instead of brute force.
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See all →Large amounts of moondust raining through the atmosphere would convert kinetic energy into heat—potentially heating and even boiling surface waters—while persistent ring shadows and volcanic/meteoric aerosols would reflect sunlight and trigger rapid cooling, so the net climate effect depends on the balance and timing of heating versus sunlight blockage.
Plants that produce caffeine suffer less insect damage because caffeine is toxic to many insects, so caffeine-producing individuals are more likely to survive and reproduce than neighboring plants without it.