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#drag

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la freakshow d'hier a été bien intense, avec de très bons artistes, super orga et des bénévoles au top, vraiment un super spectacle, Le replay "brut" est disponible par ici

quelques problèmes de son par moment, réglé par la suite dans le live, mais je publierai une version corrigée

exode.me/w/jsRb4pb3Gcg6zte5KDL

Soutenez les scènes alternatives du fedivers et boostez s'il vous plait !

#drag#dragshow#lgbq

How much total drag does my truck create while moving down the highway?

Measure it indirectly!

Run cellphone GPS logger at 1-second interval. Get truck up to speed on flat section of highway, put transmission in neutral, foot off the gas. Let the truck slow down 30 - 45 seconds to get a decent number of data points. Make another data run on same section, but opposite direction to average out effects of wind and any slope.

Import GPS log into spreadsheet.

A linear fit gives you a straight line slope...good enough to determine deceleration...then apply that to F = m * a (you need to know truck's weight) Now you know total drag force at one speed.

Total drag is air resistance (varies with square of speed) plus rolling friction (assume it's constant). OK, do a quadratic/polynomial fit. Now you know rolling friction. Subtract from total drag, and you can determine area-drag (Cd * frontal area) of your truck.

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On an average school day, harried students at UT #Austin rush across Speedway to get to class, stopping only to dodge a dangerously fast Lime scooter. On Monday, however, several students made a pitstop to get their makeup done by one of over a dozen drag performers. texasobserver.org/university-t

#politics #USpol #UTAustin #drag #LGBTQIA+ #education #news

The Texas Observer · At UT, a Day of Drag and DefianceStudents gathered for a joyful protest of the university system’s drag show ban.