It a hex of an engineer (no offence)
5 karma · joined June 19, 2020
- eink or lcd display, for always-on and long battery life.
- brightness adjustable LED, for night usage of the watch and as flashlight at night.
- physical buttons, for controls including music volume, skip to next or previous song.
- bluetooth calls and notifications.
- nfc payments.
- functionality allowing to COMPLETELY DISABLE all those fitness functions, such as step counting or heart rate measuring. FU Garmin, I hate you.
- app for plotting tides and moon phases.
- app for voice memos, then transfer to Android/iOS for converting voice-to-text and further editing.
- if the display is touch-enabled, make sure to make it LOCKABLE, otherwise it does self-activates in the shower if the message is received. FU Amazfit, I hate u2.
- solar panel on the sides or even maybe behind eink/lcd display.
At the moment I am using Tissot T-Touch Solar Connect: No nfc payments, no bluetooth calling, no flashlight at night, no tides/moons, no music control But, I never need to charge it!!!!! And I dont need to use my second hand to press the led button to check the time at night, because its a hybrid watch with luminescent arrows.
- Convert your personal Needs to your Wants/Wishes.
Dont know what cheap means for them, but it will never be for free because abundance happens when the supply exceeds demand and I dont see the scenario where the demand for energy is declining in a long run.
To minimize theta, we need to either increase D or decrease lamda.
Lets assume we would be able to make far infrared high power lasers, at say 10,000 nm = 1e-5 m wavelength.
Lets assume we would be able to make D, the diameter of our laser beam, similar to the diameter of a typical planet, for Earth it is ~13,000 km = 13e6 m.
Theta = 1e-5 / 3.14 / 13e6 ~= 1e-13 radians.
Sun is ~ 25,000 light years from the center of our galaxy, ~= 25e3 y 3e8 m/s 31.5e6 s/year ~= 1e20 m.
Laser beam diameter, there far away, would be: 1e-13 *1e20 = 1e7 m, similar to the diameter of Earth, not much further diverged, focused and delivering the wast amount of energy all over the planet thereby evaporating it to a gas.
Indeed, what you say about the melting far away planets is possible, in theory.
Lets assume energy converting photovoltaics will be made of non-crystalline materials with a high light absorption coefficient allowing solar cell thickness of ~100 nm = 100e-9 m.
Sphere surface is 4pir^2, in our case 43.14150e9^2 = 3e23 m2 * 100e-9 m = 3e16 m3 is the total volume occupied by a Dyson swarm tech.
For comparison the volume of matter that Earth contains is 1e21 m3, which is 1e21/3e16 ~= 1e5 = 100,000 times larger than what is required for a Dyson swarm.
- Idiogramma elbakyanae, a species of parasitoid wasps discovered by Russian and Mexican entomologists in 2017.
- Brachyplatystoma elbakyani [es], an extinct species of catfish discovered by Argentine paleontologists in 2020.
- Amphisbaena elbakyanae, a species of worm lizard discovered in 2021.[58]
- Sibogasyrinx elbakyanae [c; d], a species of deep-sea snail discovered by researchers from Russia and France in 2021
https://en.m.wikipedia.org/wiki/Alexandra_Elbakyan#Recogniti...