Why can you climb a tree with just a rope? This is because of the friction between the rope and the

Tour guide berates tourists on the bus for bringing kids and not shopping

zhangshangchuncheng

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Take it once a day to prevent depression

shenjingjun

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You haven't slept for three days, which bed would you choose to sleep in? (ai)

morasmr

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Speed Bump!! Cool Mechanical Series 6.17

jixiepangke

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How harsh is the environment on a polar research vessel? #PopularScience #Unzip #ResearchShip #Polar

haoqiwanhuatong

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Why do we need to grind off the bark? This is the process of peeling and rounding the wood before pe

haoqiwanhuatong

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Speed bumps: the amazing work of skilled workers at work~

jixiepangke

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Men's speed bumps: those cool machines~

jixiepangke

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Speed Bumps: Skilled Worker Series ~12.2

jixiepangke

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When shoeing a horse, why do we use red-hot horseshoes to burn the hooves?

haoqiwanhuatong

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Take you into the real world of underground miners

jixiepangke

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Why do honey collectors only harvest a small portion of the hive when harvesting honey at high altit

haoqiwanhuatong

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Do you know why elephants crush watermelons before eating them? #elephant#elephantfoot#elephant eats

haoqiwanhuatong

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Speed Bump Workers Series 9.18

jixiepangke

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Man Speed Bump!! Skilled Worker Series

jixiepangke

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What kind of job is so stress-relieving?!

jixiepangke

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Come take a look at the amazing work site!!

jixiepangke

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A simple rope can isolate you from all water sources and allow you to walk on the seabed.

dingdangnuomituan

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Dashen teaches you step by step how to make rope in the wild.

Juyuanchuangtuandui

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Are the videos we watched fake? Has wild sex education been fooling us all these years?

danzijihe_04

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