يحاول ذهب - حر
HOW TO CLEAN A SKYSCRAPER WINDOW
Issue 211
|How It Works UK
Discover how skilled window cleaners with nerves of steel tackle these towering glass facades
As city planners move towards more tower-filled skylines, more and more office workers will be plying their trade from high above the bustling city streets.
The windows in these lofty office blocks, perched hundreds of metres above the ground, are constantly exposed to the elements, with wind, dust, rain and even animals hitting their surfaces. So how do the views remain crystal clear? The window cleaners can't rely on the ladders that are used to reach the upper windows of a two-storey home. Instead, these workers need to be able to expertly operate abseiling equipment, hydraulic platforms and specialised trucks and trailers.
هذه القصة من طبعة Issue 211 من How It Works UK.
اشترك في Magzter GOLD للوصول إلى آلاف القصص المتميزة المنسقة، وأكثر من 9000 مجلة وصحيفة.
هل أنت مشترك بالفعل؟ تسجيل الدخول
المزيد من القصص من How It Works UK
How It Works UK
FORMULA FAST
YOUR ULTIMATE GUIDE TO FORMULA ONE RACING
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Issue 212
How It Works UK
MY LIFE AS AN ASTHMANAUT
A CHILDREN'S BOOK ABOUT ASTHMA
1 min
Issue 212
How It Works UK
LYDIA LOVES BUGS
A SHORT AND SWEET STORY OF AN ENTHUSIASTIC ENTOMOLOGIST
1 min
Issue 212
How It Works UK
INSIDE A DRONE
Drones aren't just for the military any more. These flying marvels are now taking over our lives
3 mins
Issue 212
How It Works UK
WE CAN HEAR WITHOUT EARS
AND OTHER THINGS YOU DIDN'T KNOW WE PLANTS COULD DO
1 min
Issue 212
How It Works UK
DO GEESE GET GOOSEBUMPS?
Many animals experience a similar reaction when they feel cold or scared
2 mins
Issue 212
How It Works UK
SUBMARINES WITHOUT SAILORS
Dive into the world of autonomous submarines and discover the mission that will see one sail around the world
4 mins
Issue 212
How It Works UK
WHAT HAPPENS INSIDE A COCOON?
How certain species of insects transform from crawling caterpillars to flying moths and butterflies
3 mins
Issue 212
How It Works UK
HOW THE ROSE LOST ITS SCENT
From floral to fragranceless, there's a biological reason behind a rose's missing odour today
3 mins
Issue 212
How It Works UK
How many insects have been discovered so far?
The total number of named species is around a million.
7 mins
Issue 212
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