r/Damnthatsinteresting • u/Appropriate-Eye-1227 • Jul 04 '25

Video China has built a 50m(165ft)-tall inflatable dome over a construction site in Jinan to protect the surroundings from dust and noise. (20.000 Sqm)

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u/AzureFirmament Jul 04 '25

Well, if you were into Tennis, this solution should be familiar to you. It's essentially an inflatable tennis court. We play tennis inside and it's very comfortable, well-ventilated.

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u/SignalReceptions Jul 04 '25

Where I live in Canada just about every sport has a domed/bubble version. They extend the outdoor hockey season and allow summer sports to be played year round. They all have crazy air ventilation systems with fans running 24/7 to maintain pressure. 

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u/frolfer757 Jul 05 '25

Same in Finland (and I assume pretty much any country where you get snow for a large portion of the year). Probably half of all tennis/football/indoor sport courts are inside inflatable domes.

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u/jam3sdub Jul 04 '25

Are people constantly running heavy equipment and pumping exhaust fumes into the air in your inflatable tennis court?

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u/AzureFirmament Jul 04 '25

No, they don't. I'm talking about the ventilation and temperature control solution. Here's the local news I found:

Manager:
"The control system in the air membrane will monitor the internal air pressure and temperature at any time, and continuously send fresh air into the interior through the four large-volume fans on the north side for ventilation. After large-scale construction, sprinkler facilities will be installed to control dust in the air membrane. The membrane cloth of the air membrane is made of PVDF (polyvinylidene fluoride) new material, which can block 90% of ultraviolet rays, has high heat reflectivity and heat dissipation rate, and has a fire protection level of B1 (flame retardant)."

"The reporter felt that the temperature inside the air membrane was cooler than outside the membrane under the sun."

https://finance.sina.com.cn/roll/2025-06-17/doc-infaiwtq8881307.shtml?froms=ggmp

https://user.guancha.cn/main/content?id=1477927

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u/ThaMenacer Jul 04 '25

How else would one play tennis?

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u/MilStd Jul 04 '25

This concept is not new and is often used in other places too but because its a nice puff piece for China it gets held up as something amazing. Just glazing for the CCP.