Why are mines so narrow when mining artificially? #Science #Unzip #Mining #Miner #Trivia

How scary is it to land a plane in a gusty wind? #Science #Relief #Aircrash #Knowledge

haoqiwanhuatong

1 View

The occupation of "29-year-old Oil Cat Cake" is actually a coal miner

you___bingbingtui___jun

24 Views

Why do rock slabs need to be broken manually? #Science #Unzip #Construction #Cool Knowledge

haoqiwanhuatong

19 Views

[Dogs] Husky Played With Coal And Made Itself Full Of Dirt

Qinglongshixun

93 Views

What modifications can be made to an excavator? #PopularScience #Unzip #LargeMachinery #Excavator

haoqiwanhuatong

53 Views

Why do we need to install a wellbore when digging a well? #Science #Unzip #IncreaseKnowledge #Diggin

haoqiwanhuatong

10 Views

Why do we add a layer of metal between the hammer head and the wooden handle? #Science #StressRelief

haoqiwanhuatong

9 Views

Why can a hatchet easily chop down a tree as thick as a bowl? #Science #Relief #Hatchet #Logging #Tr

haoqiwanhuatong

15 Views

Why not turn off the water when repairing a pipe? This is called pressure plugging. #Science #Unzip

haoqiwanhuatong

10 Views

The snow on the roof looks beautiful, but why do we need to remove it?

haoqiwanhuatong

11 Views

Cars can encounter many troubles in icy and snowy weather. Which ones have you encountered?

haoqiwanhuatong

13 Views

Why is the blade of a gantry shear angled? #Science #StressRelief #HeavyMachinery #GantryShear #FunF

haoqiwanhuatong

9 Views

Use inertia to remove parts. #PopularScience #Unzip #Inertia #SlidingHammer

haoqiwanhuatong

13 Views

How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge

haoqiwanhuatong

26 Views

They say diamonds are forever, but they can be burned and broken.

haoqiwanhuatong

36 Views

Why must mines be dug to a height where one has to "mine coal on their knees"?

jixiepangke

43 Views

Why does the bearing emit "hot air" when installing it? This is the interference fit installation me

haoqiwanhuatong

16 Views

"Three Gods"

qinyisama

26 Views

The wisdom of the working people is to change the direction of force to move heavy objects. #Science

haoqiwanhuatong

14 Views

Why do we say that no two pairs of ripped jeans are exactly alike? #Science #Unzip #Jeans #Workers #

haoqiwanhuatong

11 Views