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A comment on New ‘mirror’ fabric can cool wearers by nearly 5°C. Parent comment

Re:New ‘mirror’ fabric can cool wearers by nearly 5°C by starlust2 on Friday July 09, 2021 @12:43PM (#27785616)
Only if it's already cooler outside than inside the house. On a day where it's only 90 out during the day, it's not dropping to 75 until 8-9pm at the earliest.

Also can't use a fan on the west coast in the later parts of the summer when the air is full of wildfire smoke.

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Re:New ‘mirror’ fabric can cool wearers by nearly 5°C by Retric on Friday July 09, 2021 @01:07PM (#27785895)
An example of significant solar gain would be a car sitting outside in sunlight. A surprising amount of modern architecture would work just fine as a greenhouse. Assuming a 9 hour workday it’s going to get well above ambient before you get home.
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