We must send more telegrams. I shall notify the quartermaster.
We must send more telegrams. I shall notify the quartermaster.
Lived in Ukraine as a kid but never got to see this. The ingenuity is impressive inspirational, and I wonder how the real mountain stream scent compares to the synthetic one most folks find in stores?
(Also nbd but IIRC the Ukraine has been preferred since they gained independence because the old is associated with their experience as a CCCP territory)
True, I only included kJ equivalent because some countries use kJ on nutritional panels instead of Calories. Actual conversion rate of human energy stores to usable power is, at a guess, more like
Calories * 0.25 * 0.6 * 0.8 - dt
where t is time, d is the self-discharge rate of the battery, 0.6 is the efficiency of the generator, and 0.8 is the efficiency of the battery.
So, user better eat their wheaties.
3,442 Calories (14,388 kJ) is required to generate 2 kWh at a (generous) overall storage-work-storage efficiency of 50%.
For comparison, that is roughly:
I commute in a similar looking but less insulated Columbia Watertight II (Gray, M) and the sleeves are at least 2 cm longer than any other shell I’ve owned (a pleasant surprise for someone with long arms).
It’s narrower at the waist than the torrentshell but similar at the hip, not as insulating but lighter, and it’s a bit stiffer material (e.g. headwind doesn’t press it against your skin as much as slinkier shells). This style of jacket isn’t specialized for cycling so it does bunch a bit in the front and could ride up in the back if your stance is low. And the hood isn’t removable to accommodate a helmet, so you sometimes have to shake the hood out at the destination.
But it’s dry, comfortable, and has held up for 5 years of commuting. 🤙