Footballus vita est
Join Date: Jun 2002
Location: Portland, OR
Bikes: Trek 4500, Kona Dawg
Wow! That's gotta be better than creotine.
We'll just do rough estimates since there are too many factors to really get an accurate idea. Let's assume that your helmet is semi-circular in profile with a 9" diameter (just a guess). This gives a frontal area of 32 sq. in. If you have a nice helmet with 40% of that area being vents, there are 13 sq. in. of space which would then collect bugs at a density of about 6.9 bugs per sq. in.
Let's look at your mouth. I will assume that you ride hard enough that you reflexively bare your teeth, otherwise your number seems kinda high. At 1/4 in by 2 in top and bottom (high end estimate) you could expose as much as 1 sq. in. of teeth to catch bugs. The higher density of 10 bugs per sq. in. is likely attributable to aerodynamics of the helmet that would deflect large quantities around the edges. We'll assume the "suction" of your breath to be negligible at road speeds, but also assume that you suck down bugs at a rate similar (if not above) the rate they get stuck in your teeth. Breathing hard could expose as much as 2 sq. in. of mouth which should inhale about 20 bugs. I believe an earlier thread discussed the protein composition of insects but I don't have the results of that analysis. What kind of bugs were they? We need to be able to estimate the weight of the bugs and compare that number*20*(%protein) to the 75 grams of protein recommended for a person on a 3000 calorie diet.
Sorry I can't do a very accurate analysis without being able to measure your helmet and observe your riding habits. Fluid dynamics over the human face could get pretty involved too. I would guess you didn't ingest more than 2-3 grams of bugs (if they were no bigger than housefly sized), so probably less than a gram of protein.
Go eat a big sirloin steak to make up for it.
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