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Full stack Kotlin

on October 09, 2018

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KOTLIN ON GOOGLE CLOUD PLATFORM

I wrote this full stack Kotlin app here: https://eo-net.appspot.com/

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Fastest Random-number Generator

This is the fastest random-number generator ever built "Photons bounce between the curved walls of the bow tie multiple times, before coming out as a scattered beam. The researchers can then capture the light with an ultrafast camera. They recorded the light output of 254 independent pixels, which together produced random bits at a rate of around 250 terabits per second, or 250 terahertz. That’s several orders of magnitude faster than previous such devices, which recorded only one pixel at a time. Their results were reported in Science on 25 February" A bow-tie-shaped semiconductor (scanning electron microscope image) produces a laser beam with randomly fluctuating intensity. Credit: Kyungduk Kim

lithium-ion battery extremes

Taking lithium-ion batteries to new extremes "Under experimental conditions ranging from –20° C ( –4° F; very cold) to 45° C (114° F; very hot), the thermal regulator performed well, warming quickly from –20° C ( –4° F) to around 20° C (68° F) due to heat from the battery retained by the air gap and increasing the uable factor of the battery by a factor of three. At the opposite extreme, the thermal regulator also performed admirably, transitioning to the ON state at around 45° C (113° F) whereafter the temperature rise in the LIBs was limited to 5° C (9° F). After testing this thermal regulator set-up through 1,000 ON/OFF cycles, the investigators found the OFF state performance to be just slightly degraded (an 8.5% battery capacity reduction at –20 ° C [–4° F]) whereas the ON state performance remained unchanged."

Voyager 2 spacecraft approaches interstellar space

Voyager 2 spacecraft approaches interstellar space "Voyager 2 is also lagging about six years behind its counterpart, so it will likely cross at a different point in the sun’s 11 year cycle. This cycle causes variations in solar flares, eruptions and winds, which makes the heliopause expand and contract."

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Full stack Kotlin

KOTLIN ON GOOGLE CLOUD PLATFORM

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