(Approximately) Evanescent Fields concentrated near terrestrial media as a power line alternative

https://preview.redd.it/dxigc1witk271.png?width=2133&format=png&auto=webp&s=ace63d25df7ae2b6daafb2318e5561d27f62d25d

https://patents.google.com/patent/US9912031B2/en

>Excitation and use of guided surface wave modes on lossy media
>
>Disclosed are various embodiments for transmitting energy conveyed in the form of a guided surface-waveguide mode along the surface of a terrestrial medium by exciting a polyphase waveguide probe.
>
>[...]
>
>To further illustrate the distinction between radiated and guided electromagnetic fields, reference is made to FIG. 1 that depicts graph 100 of field strength in decibels (dB) above an arbitrary reference in volts per meter as a function of distance in kilometers on a log-dB plot. The graph 100 of FIG. 1 depicts a guided field strength curve 103 that shows the field strength of a guided electromagnetic field as a function of distance. This guided field strength curve 103 is essentially the same as a transmission line mode. Also, the graph 100 of FIG. 1 depicts a radiated field strength curve 106 that shows the field strength of a radiated electromagnetic field as a function of distance.
>
>[...]
>
>The distinction between radiated and guided electromagnetic waves, made above, is readily expressed formally and placed on a rigorous basis. That two such diverse solutions could emerge from one and the same linear partial differential equation, the wave equation, analytically follows from the boundary conditions imposed on the problem. The Green function for the wave equation, itself, contains the distinction between the nature of radiation and guided waves.

https://patents.google.com/patent/US10516274B2/en

>Simultaneous transmission and reception of guided surface waves
>
>Disclosed are various embodiments of a guided surface wave transmitter/receiver configured to transmit a guided surface wave at a first frequency and to receive guided surface waves at a second frequency, concurrently with the transmission of guided surface waves at the first frequency. The various embodiments can be configured to retransmit received power and applied the received power to an electrical load. The various embodiments of the guided surface wave transmitter/receiver also can be configured as an amplitude modulation (AM) repeater.

More paten

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πŸ‘€︎ u/kmarinas86
πŸ“…︎ Jun 01 2021
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Physicists detect spin momentum of light. They used an extremely sensitive nano-cantilever, capable of femtoNewton resolutionβ€”measuring a force smaller than the force gravity exerts on a single bacteriumβ€”immersed in an evanescent optical field directly above a total-internal-reflecting glass surface phys.org/news/2016-04-phy…
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πŸ‘€︎ u/drewiepoodle
πŸ“…︎ Apr 30 2016
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Plotting the penetration depth of an evanescent field

I am working a bit with total internal reflection fluorescence microscopy and want to plot how the penetration depth varies with the illumination incident angle. It seems like it used to be a nice java applet for this here, which no longer works.

I am using the formula specified on that webpage and plotting it in matlab by varying theta:

[; d = \lambda/4\pi(n_1^2 sin^2 (\theta) - n_2^2)^(-0.5) ;]

The problem is that the plot looks bananas. Probably due to the fact that I get imaginary numbers from this equation.

Does anyone know what I am missing?

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πŸ‘€︎ u/history_roadtrip
πŸ“…︎ Nov 21 2017
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TAB required for this hymn section of Field Of Innocence by Evanescence

Link: https://www.youtube.com/watch?v=aMzKKREHQgA

Timestamp: 2:33 to 3:37

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πŸ‘€︎ u/fragonfour
πŸ“…︎ May 12 2021
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Jungle Stereotypes

(Inspired by u/vivlikesbuns' amazing "ADC stereotypes" and "Mid stereotypes" posts.)

Amumu:

-If he has become common then the end times are upon us

-Pretty rare the higher you go up the ladder, which makes the encounter with one all the more terrifying

-Quite some chill people, will rarely tilt or give up because they know they scale

-The Spiderman theme song always plays in your head and theirs whenever they use Q

-Will always do something, what changes is exactly how much they accomplish

Dr. Mundo:

-Either top lane autofills or people who have sniffed enough paint to be very good at going where they please

-Makes him look like an absolute early game powerhouse when you barely can do your camps whenever you pick him up

-At level 6 they unlock both their ult and their Adderall bottle

-Either completely dominates the game or makes you sympathize with all those Sorakas who complain about Grievous wounds for a fleeting, bitter moment followed by a wave of disgust towards yourself

Diana:

-Would be the Katarina of the jungle if Evelynn didn't exist

-Will either /mute all or say enough things to warrant a war crimes trial

-If she has become a common pick you will curse the gods for the lack of good MR itemization

-Might not have a presence before 6 depending on the game, but after that you will feel the wrath of the mains who played her before the rework

-Her ult will always hit like a truck even when she only lands it on one person, when you swear you landed it on 4 and did less damage than a Karthus autoattack

Ekko:

-One of the smartest AP junglers, probably good at trigonometry

-Might either be chill as ice or flame hard enough to make Ornn blush

-Will almost always get half of the kills in his team, if not more

-Unlike Mundo mains, they became one with the Adderall years ago, to the point they can actually see into the future for the next 5 seconds to land every single W

-Their ult rewinds them, but also makes you feel 10 years older when you are unable to react in time

Elise:

-The early game AP jungler

-High chance of these people being self-made men/women, or at the very least living independently with a decent job

-They channel their inner Kled, since they want to be done with this "team" thing as soon as possible before the enemy team overcomes their fear of spiders

-In spite of the above, they tend to be team players, as insurance for lat

... keep reading on reddit ➑

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πŸ‘€︎ u/Vga96
πŸ“…︎ Dec 29 2021
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SERIOUS: This subreddit needs to understand what a "dad joke" really means.

I don't want to step on anybody's toes here, but the amount of non-dad jokes here in this subreddit really annoys me. First of all, dad jokes CAN be NSFW, it clearly says so in the sub rules. Secondly, it doesn't automatically make it a dad joke if it's from a conversation between you and your child. Most importantly, the jokes that your CHILDREN tell YOU are not dad jokes. The point of a dad joke is that it's so cheesy only a dad who's trying to be funny would make such a joke. That's it. They are stupid plays on words, lame puns and so on. There has to be a clever pun or wordplay for it to be considered a dad joke.

Again, to all the fellow dads, I apologise if I'm sounding too harsh. But I just needed to get it off my chest.

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πŸ‘€︎ u/anywhereiroa
πŸ“…︎ Jan 15 2022
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About the wet snow

As it partly melted, it released water, carbon dioxide, carbon monoxide, and complex organic compounds. It was the organic compounds that most concerned Lou County. This was not the usual earth-born precipitation. This snow came from outer space.

While we often call comets snowballs, and it may be true that the object’s chemical composition was similar to a comet’s, the object was more like an actual snowball. One with some . . . modifications. Cue the theories about an extraterrestrial civilization beginning an interplanetary snowball fight with us. This object might’ve had designed outer layers that protected most of its snow from being melted on entry. It didn’t burn up and break apart like a comet should.

Snow drifted down on Lou County when it opened up. The object might’ve stopped before opening, which could explain why the snowfall lasted as long as it did. I learned about all this after the fact, when scientists came to analyze that snow and the government worked to cover it up like so much salt. They kept it out of the news and had an explanation on hand for those of us trying to leak it. I’m a lab tech myself, although that kind of science isn’t exactly my field. More to the point, I was there in Lou County when those special organic compounds from the snow took root. Sprouted.

Wet snow can be particularly hazardous. With a drop in temperature, it can freeze again and become slippery.

It can stick to your skin.

It stuck to my husband’s skin when he stood out there under that snow. To all appearances, it was not much different than any other. Maybe it fell a little more frantically than normal snow; maybe it was just a little darker. It was difficult to tell because it was nighttime. I held the door open and watched from inside as Asher stuck out his tongue. Like he was a kid.

β€œDon’t stay out too long,” I said to him. I put a hand to my stomach. Oli had kicked again.

It didn’t stop snowing until late that night.

Asher came home smelling of cheap whiskey and perfume. The whiskey I was used to. The perfume, not so much.

The following morning, I was so depressed that it took me a while to leave my bed. Asher was out cold, his neck at an angle that suggested it might lead to a crick. I held my breath and moved him around to something better.

I tried to lift my spirits for Oli’s sake. I’d been going to work as usual, but that morning it struck me, out of the dark blue like a stray snowball. Even though I should've been anticipating it, it's l

... keep reading on reddit ➑

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πŸ‘€︎ u/Rick_the_Intern
πŸ“…︎ Jan 04 2022
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This subreddit is 10 years old now.

I'm surprised it hasn't decade.

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πŸ‘€︎ u/frexyincdude
πŸ“…︎ Jan 14 2022
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Dropped my best ever dad joke & no one was around to hear it

For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.

I said "hey look, an escaPEA"

No one near me but it didn't half make me laugh for a good hour or so!

Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies πŸ˜‚

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πŸ‘€︎ u/Vegetable-Acadia
πŸ“…︎ Jan 11 2022
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Why did Karen press Ctrl+Shift+Delete?

Because she wanted to see the task manager.

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πŸ‘€︎ u/Eoussama
πŸ“…︎ Jan 17 2022
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So 2 trees got arrested in the town I live...

Heard they've been doing some shady business.

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πŸ‘€︎ u/K1ll47h3K1n9
πŸ“…︎ Jan 18 2022
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What is the scariest tree?

BamBOO!

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πŸ‘€︎ u/K1ll47h3K1n9
πŸ“…︎ Jan 18 2022
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What is a a bisexual person doing when they’re not dating anybody?

They’re on standbi

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πŸ‘€︎ u/Toby-the-Cactus
πŸ“…︎ Jan 12 2022
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62 Parahumans I made for a now-defunct tabletop game.

Probably never gonna get a chance to actually do anything with these, so I figured I would post them here on the off chance anyone's interested. Keep in mind a decent handful of these aren't super original, and a few are pretty much directly ripped off from other things.

Lerna - Ability allows him to transform his hands into tentacles that can extend up to 30ft in length each, and are strong enough to whip through concrete. At will he can make the tips of each tentacle glow a bright blue color, which causes them to leave a thin force-field line in their wake. They fade, however, after 5 seconds. He can also wrap the tentacles into any wound to patch it up fairly quickly, shedding material from the tentacle which transforms into the injured sections of his body, leaving him able to heal himself so long as he isn't dead or unconscious.

Banneret - Tinker ability centers around the creation of modern facsimiles of medieval weaponry and armor, and possesses a secondary ability that allows him to force a single person to only be capable of focusing their aggression on him. The effect breaks if someone other than him attacks the person he's singling out.

Shuttle - Ability allows her to lay down a glowing purple path on flat surfaces that massively increases the speed of anything that touches it.

Miss Direction - Ability allows any attack (manton effect permitting) that she is conscious of that comes within 5 inches of hitting her to instead teleport to a location of her choosing, with a new direction of her choosing. Also flies.

Fortress - Ability allows him to manipulate the internal structure of a building. When he activates his power the internal layout of a building will slowly shift into a dungeon of his making, with the exact layout and traps within of his choosing. The building will return to normal upon him exiting.

Arborize - Ability allows him to cover his body in bark that reduces damage. Any spot currently covered in bark is capable of sprouting branches that can twist and grow as he desires. Branches can have, or not have leaves as he sees fit. He can feel through the branches, and having them destroyed hurts about as much as stubbing a toe.

Curiosity - Tinker specialty that revolves entirely around the building, and modification of a cat shaped robot that she can remotely control from anywhere in the city. At present the robot possesses night vision, heat vision, electromagnetic vision, can run up to 30mph, and has claws that can cause a

... keep reading on reddit ➑

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πŸ“…︎ Dec 22 2021
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The Plight of Cain, Part 1:

The following is an exegesis of Genesis chapter 4, and how it relates to the archetypal Cain within each of us, as it relates to egotism, and evil. However, although Cain, like all biblical archetypes, exist in each of us, Cain also describes people who are archetypally aggrandizing in their lifestyles, and so describes social elites.

1. And the man knew Eve his wife; and she conceived and bore Cain, and said: 'I have gotten a man with the LORD.'

Language is fundamental to biblical interpretation. Adam means "transcendental consciousness". What is translated here as man is the word Adam. So 'transcendental consciousness' 'knew' Eve. Eve literally means 'living one', and so refers to the body. Keeping in mind what happened in the last chapter - eating from the tree of good and evil - the body, or Eve, contains energies from both goodness and evil. The transcendental consciousness of the mind is befuddled about what is coherent from what is incoherent. It is now operating without a sense of right or wrong thinking, feeling, or acting. It doesn't know how to relate to its body. So "Adam knew Eve" means, "reflection reflected on the pre-reflective feelings in the body", and something "came out" of it. What did he get? Literally, "I have gotten a man"...the Lord. The word for "gotten" is 'caniti' - which is what the name Cain is derived from (hence, Cain means, roughly, "acquirer"). There is no word "help" here, although translators often interpolate such a word to make it grammatically sensible. But that's not the point. The new consciousness being born is "I have GOTTEN" something...."A man" i.e. I am an individual now. The transcendental consciousness and the body, now poorly discriminated, produces egotism - the individualized man. And so, why does YHWH appear right after man? Because YHWH is the logical structure of the world. YHWH makes this response what it is. It's cause and effect. It is what it is because the coherency within the world makes this consequence what it is.

2 And again she bore his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground.

The bible doesn't waste words. It is succinct and logically to the point. If the disordered consciousness produces Cain, what is its "twin"? Dissociation, or more simply, the attitude of "I don't care". We see both these attitudes present in todays society, sometimes within the exact same people. I've seen too many speeches to even name by very well known people -

... keep reading on reddit ➑

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πŸ‘€︎ u/SockMaximum
πŸ“…︎ Dec 30 2021
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Geddit? No? Only me?
πŸ‘︎ 6k
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πŸ‘€︎ u/shampy311
πŸ“…︎ Dec 28 2021
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I wanna hear your best airplane puns.

Pilot on me!!

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πŸ‘€︎ u/Paulie_Felice
πŸ“…︎ Jan 07 2022
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E or ß?
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πŸ‘€︎ u/Amazekam
πŸ“…︎ Jan 03 2022
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What did Spartacus say when the lion ate his wife?

Nothing, he was gladiator.

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πŸ‘€︎ u/rj104
πŸ“…︎ Jan 15 2022
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Which actor drives the least?

Christopher Walken

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πŸ‘€︎ u/TR1771N
πŸ“…︎ Jan 18 2022
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Pun intended.
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πŸ‘€︎ u/Sharmaji1301
πŸ“…︎ Jan 15 2022
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No spoilers
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πŸ‘€︎ u/Onfour
πŸ“…︎ Jan 06 2022
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Covid problems
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πŸ‘€︎ u/theincrediblebou
πŸ“…︎ Jan 12 2022
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These aren't dad jokes...

Dad jokes are supposed to be jokes you can tell a kid and they will understand it and find it funny.

This sub is mostly just NSFW puns now.

If it needs a NSFW tag it's not a dad joke. There should just be a NSFW puns subreddit for that.

Edit* I'm not replying any longer and turning off notifications but to all those that say "no one cares", there sure are a lot of you arguing about it. Maybe I'm wrong but you people don't need to be rude about it. If you really don't care, don't comment.

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πŸ‘€︎ u/Lance986
πŸ“…︎ Dec 15 2021
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What did 0 say to 8 ?

What did 0 say to 8 ?

" Nice Belt "

So What did 3 say to 8 ?

" Hey, you two stop making out "

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πŸ‘€︎ u/designjeevan
πŸ“…︎ Jan 03 2022
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Spi__
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πŸ‘€︎ u/Fast_Echidna_8520
πŸ“…︎ Jan 11 2022
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For Gotham
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πŸ‘€︎ u/FreeHugsXD
πŸ“…︎ Jan 17 2022
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I dislike karma whores who make posts that imply it's their cake day, simply for upvotes.

I won't be doing that today!

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πŸ‘€︎ u/djcarves
πŸ“…︎ Dec 27 2021
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The Ancient Romans II
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πŸ‘€︎ u/mordrathe
πŸ“…︎ Dec 29 2021
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Where do you find a cow with no legs?

Where ever you left it πŸ€·β€β™€οΈπŸ€­

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πŸ‘€︎ u/kitkatty0309
πŸ“…︎ Jan 16 2022
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I'd like to dedicate this joke to my wisdom teeth.

[Removed]

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πŸ‘€︎ u/ThoughtPumP
πŸ“…︎ Jan 14 2022
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I did it, I finally did it. After 4 years and 92 days I went from being a father, to a dad.

This morning, my 4 year old daughter.

Daughter: I'm hungry

Me: nerves building, smile widening

Me: Hi hungry, I'm dad.

She had no idea what was going on but I finally did it.

Thank you all for listening.

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πŸ‘€︎ u/Sk2ec
πŸ“…︎ Jan 01 2022
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Naan-negotiable
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πŸ‘€︎ u/sjmaeff
πŸ“…︎ Jan 16 2022
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How do you stop Canadian bacon from curling in your frying pan?

You take away their little brooms

πŸ‘︎ 6k
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πŸ‘€︎ u/Majorpain2006
πŸ“…︎ Jan 09 2022
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School Was Clothed
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πŸ‘€︎ u/Kennydoe
πŸ“…︎ Jan 08 2022
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My play list of Gothic Metal bands

The 3rd and the Mortal Artrosis Asp Asrai Askara Ava Inferi Beseech Blackthorn Bloodflowerz Charon Chelsea Wolfe Cradle of Filth The Crest Dark the Suns Dakrya Delight Draconian Dreadful Shadows Dreams of Sanity Edenian Elis Entwine Evanescence Fields of Nephilim Flowing Tears Garden of Delight Isiphilon Immortal Angelica Lacrimas Profundere Lacrimosa Lacuna Coil Mandragora Scream Moi Dix Mois Moonspell Mortal Love My Dying Bride Noturna Paradise Lost Paramaecium Penumbra Sellisternium Seraphim Shock The Sins of thy Beloved Sirenia Tales of Dark To/Die/For Tiamat Theatre of Tragedy Theatre des Vampires Trail of Tears Trees of Eternity Tristania (Vibeke Stene forever) Type o Negative Yosei Teikoku

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πŸ‘€︎ u/Animadark
πŸ“…︎ Dec 01 2021
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Remember that joke I told you about the chiropractor?

It was about a weak back.

πŸ‘︎ 6k
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πŸ‘€︎ u/tanglwyst
πŸ“…︎ Jan 16 2022
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Letting loose with these puns
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πŸ“…︎ Jan 13 2022
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Couch potato
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πŸ“…︎ Dec 31 2021
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Axi

Level 2: 6/10 quests left

Name: Axi

Age: 22

Gender: female

Race: Humanoid Axolotl

Height: 5’10”

Weight: 140lbs

Class: Healer

https://pbs.twimg.com/media/FB9yH7dVIAA5-hk?format=jpg&name=4096x4096

Appearance

Theme

Slots ( 14/20)

Racial abilities:

Flexible- +1 to dexterity throws

Darkvison- Axi can see in darkness as if it was low light. She has a +2 to perception in darkness.

Swimmer- Axi has the ability to breathe underwater, regardless of conditions, she can also see through murky and dark water with ease, as well as this she has the ability to swim underwater with an added 20ft movement bonus.

Purifier- Axi has the ability to purify any body of water she is near. she also has the ability to create and minipulate bubbles. She can even create them to be strong enough to fly on.

  • Core Passives

Quickfooted (2 slots) - Axi has +2 to dodging attacks

Unique battle style (2 slots) - Axi has +2 to attack with strange or unique weapons.

Super Regeneration (5 slots)- as well as boasting 10% regeneration per round Axi can use an action to focus on her regeneration healing herself for an extra 10% (this would count as an active heal). She can regrow lost limbs easily.

  • Learned Passives: none
  • Core actives:

Healing spells-

-- Xolotls gift- healing bubble (3 slots)

- Axi fires a healing bubble at an ally or small group of allies, used to replenish her friends in the battlefield.

-Targets a single target up to 50 ft away, then projects a sphere of Healing water that heals 20% health. All allies in a 5 meter radius around the target also regain 10% health. 10% also applied to herself. Two round cooldown.

-- Xolotls gift- Water Veil (3 slots)

-Axi spreads a powerful healing mist around her giving her allies within 30 ft her regeneration for 3 turns (it would also spread her super regeneration active ability to them as well for her it would give her a bonus to her regen but not her active healing) (cool down of 8 turns)

-- Xolotls gift- tranquil ripple (4 slots)

A healing ability to give her ally a heal when needed.

- used on a single target to heal them a bit granting them 15% health. Then to another for 10% and finally another ally for 5%, as well as giving them 5% regen for 3 rounds all count as an active heal recharge of 4 rounds.

  • Learned actives
... keep reading on reddit ➑

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πŸ‘€︎ u/Azerkerking
πŸ“…︎ Oct 22 2021
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Blind Girl Here. Give Me Your Best Blind Jokes!

Do your worst!

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πŸ‘€︎ u/Leckzsluthor
πŸ“…︎ Jan 02 2022
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What starts with a W and ends with a T

It really does, I swear!

πŸ‘︎ 6k
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πŸ‘€︎ u/PsychedeIic_Sheep
πŸ“…︎ Jan 13 2022
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I had a vasectomy because I didn’t want any kids.

When I got home, they were still there.

πŸ‘︎ 10k
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πŸ‘€︎ u/demotrek
πŸ“…︎ Jan 13 2022
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It this sub dead?

There hasn't been a post all year!

πŸ‘︎ 13k
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πŸ‘€︎ u/TheTreelo
πŸ“…︎ Jan 01 2022
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