Which Shape CUTS BEST? (Weed Eater Line at 100,000 Frames Per Second) - Smarter Every Day 238

ਸਾਂਝਾ ਕਰੋ
ਏਮਬੈਡ
  • ਨੂੰ ਪ੍ਰਕਾਸ਼ਿਤ ਕੀਤਾ ਗਿਆ 28 ਜੂਨ 2020
  • Thanks to ExpressVPN for sponsoring this video. Get 3 months free with a 12-month plan at expressvpn.com/smarter
    Click here if you're interested in subscribing: bit.ly/Subscribe2SED
    ⇊ Links to buy the winning weedeater line ⇊
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    GET SMARTER SECTION
    What’s it called? Weed Eater, String Trimmer, Weed Wacker, Whipper Snipper?
    Google Trends map here:
    trends.google.com/trends/explore?geo=US&q=weed%20eater,weed%20wacker,string%20trimmer,weedeater
    AFFILIATE LINKS:
    (When people purchase from these links it will support Smarter Every Day.)
    Check out ExpressVPN Here: expressvpn.com/smarter
    THE WINNING SHAPES (As a result of this EXTREMELY limited data set)
    Oregon “Gator Line” (Called “sharp square” in the video)
    288 ft ~ $15: amzn.to/2CFXewP
    895 ft ~ $30: amzn.to/2ZlvTHU
    Star shaped line
    Cyclone Brand
    140 ft ~ $15 amzn.to/2AeCmfq
    855 ft ~ $50 amzn.to/387oPCV
    (I couldn’t find Shakespeare for a good price on Amazon but here is the style I tested)
    125 ft ~ amzn.to/2ZnBRbA
    Other stuff:
    ❓Mystery Item (just for fun): amzn.to/38aNmXv
    Things I use and like:
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    Also, if you’re interested in a Smarter Every Day shirt etc. they’re really soft and you can get there here: www.smartereveryday.com/store
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    OTHER TESTING
    Project Farm Tested Durability: instop.org/video/HVJz7Gqn_SY-v.html
    He tested other considerations here: instop.org/video/89BkJF0kVyc-v.html
    I thought this was a well written break-down of different shapes: www.saraheberle.com/understanding-the-various-shapes-of-trimmer-line/
    It’s interesting that so many different companies have their own proprietary shape etc, but I can’t find any scientific research to back any of it up. Fascinating!
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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    Warm Regards,
    Destin
  • ਵਿਗਿਆਨ ਅਤੇ ਤਕਨਾਲੋਜੀ

ਟਿੱਪਣੀਆਂ • 12 423

  • SmarterEveryDay
    SmarterEveryDay  11 ਦਿਨ ਪਹਿਲਾਂ +5829

    Robert subscribed then hit the bell. Be more like Robert. In all seriousness I was impressed by how quickly he came up with a well thought out, nuanced hypothesis without even a moment’s notice. Huge thanks to Robert. Also, a huge thanks to everyone who supports Smarter Every Day on Patreon at www.patreon.com/smartereveryday
    Thank you!
    Destin

    • Garrett Chambers
      Garrett Chambers 21 ਘੰਟੇ ਪਹਿਲਾਂ

      Of course he came up with a good hypothesis, it’s the Madison, it does things to people

    • Jack Saggers
      Jack Saggers ਦਿਨ ਪਹਿਲਾਂ

      Its called a whipper snipper

    • pigeons221
      pigeons221 2 ਦਿਨ ਪਹਿਲਾਂ

      Can you do a video of how birds eat in slow motion? Birds eating food are very quick to the naked eye and we do not know how fast they do that.

    • Andreas Hontzia
      Andreas Hontzia 3 ਦਿਨ ਪਹਿਲਾਂ

      Don't be afraid as a scientist to interview people, who practically perform your field of study every day. It is a win-win situation. You both will learn from each other. I did this a lot and must say: They will tell you the edge case, you won't have thought of in a life time.

    • Ahmed el shorbagy
      Ahmed el shorbagy 4 ਦਿਨ ਪਹਿਲਾਂ

      Dear destin thanks for the wonderful easy knowledge, I really want a video about starlink vs Internet of thing's vs smart house vs smart cars what is the plan how life will be after 80 % of this evolution

  • Super knullisch
    Super knullisch ਘੰਟੇ ਪਹਿਲਾਂ

    Strimmer?? What!?! No.. it's Trimmer! in Sweden at least!😁

  • Jake Santangelo
    Jake Santangelo 3 ਘੰਟੇ ਪਹਿਲਾਂ

    Hey destin I think you would make a cool video about top fuel dragsters

  • TheFaceofDood
    TheFaceofDood 5 ਘੰਟੇ ਪਹਿਲਾਂ

    Robert is gold! I would love to see a follow up test using all of the non-string attachments that are always being advertised.

  • we can game
    we can game 6 ਘੰਟੇ ਪਹਿਲਾਂ

    w̴̡̡̦͙͔̗͈̮̥͊́͐̉̚e̷̙̅e̶͉͈͋d̶̡͇̫̩͋͂̇̂͊́̅̀͜ ̵͙̤̭̝͉̻̝̠̖̓̋͊͜e̵̦̤̳̼͉̳͕̙͖̱̓͊̏ą̵̧̝̳̚͝͠t̶̠̫͍̳̓̏̿́͛̏̒̌͗͘e̴̳̓̒̀̍r̷͉̼̋̔͑̓̽̀

  • Spooderman
    Spooderman 8 ਘੰਟੇ ਪਹਿਲਾਂ

    Whipper snipper gang rise up from down under.

  • Oli Moore
    Oli Moore 10 ਘੰਟੇ ਪਹਿਲਾਂ

    Here in Australia we call weed eaters Whippa Snippers

  • stocchinet
    stocchinet 11 ਘੰਟੇ ਪਹਿਲਾਂ

    Why do the chicken cross the road?

  • Alyssa Andersen
    Alyssa Andersen 12 ਘੰਟੇ ਪਹਿਲਾਂ

    Wipper snipper in Australia

  • Honey BBQ Sauce
    Honey BBQ Sauce 13 ਘੰਟੇ ਪਹਿਲਾਂ +1

    Most people where I live here in ohio call it a weed whacker I dont think that data is very accurate. like how could it be anyway.

  • Snowboarding Beast 07
    Snowboarding Beast 07 13 ਘੰਟੇ ਪਹਿਲਾਂ

    If you think about it you can never actually touch anything because atoms cannot touch each other so if you give someone a high-five you don’t actually touch there hand

  • Γιάννης Μεϊμάρης
    Γιάννης Μεϊμάρης 14 ਘੰਟੇ ਪਹਿਲਾਂ

    Just a comment about the twists on the lines. A tubular object when subjected to high air speed tends to wobble a lot. The twist breaks up the air turbulence thus making the object much more stable. You get to see that applied a lot on bridge cables.

  • Theldras Pneumonoultramicroscopicsilicovolcanoconiosis
    Theldras Pneumonoultramicroscopicsilicovolcanoconiosis 14 ਘੰਟੇ ਪਹਿਲਾਂ

    a string trimmer is a string trimmer regardless of what the majority want to call them. if the majority was to call a tornado a spiny boi, would that make "spiny boi" the correct term? i think not!
    and with how fast it spins the shape don't really matter all that much.

  • imapieface
    imapieface 14 ਘੰਟੇ ਪਹਿਲਾਂ

    Didn’t ProjectFarm already do something like this (just without the slo-mo, but more scientifically rigorous)?
    Ah, yeah, I see his link in the description 😂

  • Ivy Kueffner
    Ivy Kueffner 14 ਘੰਟੇ ਪਹਿਲਾਂ

    It’s so different hearing the words "weed eater". Never in my life have I heard that term until I started watching your videos. I call them "weed whackers"

  • imapieface
    imapieface 15 ਘੰਟੇ ਪਹਿਲਾਂ

    I’m from PA. PEOPLE DON’T SAY WEED WACKER EVERYWHERE!?

  • Julius Zavatskis
    Julius Zavatskis 15 ਘੰਟੇ ਪਹਿਲਾਂ

    Star shape uses "tennis ball" air turbulence, that makes air to move away from cutting edge in result "sucking" grass to the cutting edge.

  • luis martinez
    luis martinez 15 ਘੰਟੇ ਪਹਿਲਾਂ

    Im from florida i call it a weed whacker

  • Starlord1103
    Starlord1103 16 ਘੰਟੇ ਪਹਿਲਾਂ

    In German it's called Rasentrimmer. I like my language somehow

  • Davo
    Davo 19 ਘੰਟੇ ਪਹਿਲਾਂ

    Most Australians say whippa snippa

  • Steve P
    Steve P 19 ਘੰਟੇ ਪਹਿਲਾਂ

    WHIPPER SNIPPER 🇦🇺

  • 7Firefly7
    7Firefly7 20 ਘੰਟੇ ਪਹਿਲਾਂ

    Just got hired doing weed whacking for my city, this is wonderful. For the record, we use sharp sharp square

  • 2K_YT
    2K_YT 21 ਘੰਟੇ ਪਹਿਲਾਂ

    I call it a weed wacker and a weed eater. Same thing it just kills weeds. Why cant it just be called a weed?


    Oh wait.....

  • MrKoubak
    MrKoubak 22 ਘੰਟੇ ਪਹਿਲਾਂ

    first worl problems

  • panda Wells
    panda Wells 22 ਘੰਟੇ ਪਹਿਲਾਂ

    Weed whacker is just so much more fun to say

  • The EfX
    The EfX ਦਿਨ ਪਹਿਲਾਂ

    Why not the grass cutter??

  • MrGreenAKAguci00
    MrGreenAKAguci00 ਦਿਨ ਪਹਿਲਾਂ

    Robert is awesome!

  • Kookee Penguins
    Kookee Penguins ਦਿਨ ਪਹਿਲਾਂ

    Hypothesis:
    The ad in this video is NordVPN

  • Ken's Channel
    Ken's Channel ਦਿਨ ਪਹਿਲਾਂ

    Waiting for Robert to show up to help Dustin at the next Rocket facility tour to describe friction welding fuel tanks or optimal shapes for nose cones.

  • nanophreak
    nanophreak ਦਿਨ ਪਹਿਲਾਂ

    I think the star shaped line getting cleaner cuts might just come down to the fact that it has more 'edges' so it has a higher chance of contacting the grass with a sharp shear angle.

  • KiwiPokerPlayer
    KiwiPokerPlayer ਦਿਨ ਪਹਿਲਾਂ

    New Zealand checking in, confirming "weed eater" is correct but they are called "line trimmers" in hardware stores.

  • dewcodered88
    dewcodered88 ਦਿਨ ਪਹਿਲਾਂ

    Yeah its a weedeater... Everyone else is wrong... lol

  • Andy T
    Andy T ਦਿਨ ਪਹਿਲਾਂ

    I’ve been skipping this video forever in my feed because I thought those were gummy candies. And I was like why do I care about gummy candies being hit by a weed eater

  • Merecir
    Merecir ਦਿਨ ਪਹਿਲਾਂ

    Robert should do hours long weed eater videos, he could get millions of subscribers from that I think.

  • B4D-W0LF
    B4D-W0LF ਦਿਨ ਪਹਿਲਾਂ

    That's rad :D

  • Дмитрий Хабаров
    Дмитрий Хабаров ਦਿਨ ਪਹਿਲਾਂ

    what i think about this experiment is that americans are f***en BORED
    in motha Russia, we call this thing a "trimmer". Because it doesn't eat grass or weed or bush - it doesn't eat at all. I-i-i-i-t tri-i-i-ims.....

  • mista bshe
    mista bshe ਦਿਨ ਪਹਿਲਾਂ

    australia says whipper snipper budy

  • Kenneth Clark
    Kenneth Clark ਦਿਨ ਪਹਿਲਾਂ

    Weed Whacker

  • Axela MPS
    Axela MPS ਦਿਨ ਪਹਿਲਾਂ

    In the UK, it's very much a strimmer. "Weed eater" sounds simplistic and dumbed down to me.

  • El Caras
    El Caras ਦਿਨ ਪਹਿਲਾਂ

    Hi Aron, I like your videos and the way you explain the operation of physical phenomena, maybe you can help me with something that happened to me yesterday, one of our glasses (I don't know if it was glass or crystal) exploded spontaneously For no apparent reason, now my mom and I would like to know how this happened. I would very much like you to answer my question. Regards

  • Garfish
    Garfish ਦਿਨ ਪਹਿਲਾਂ +5

    "he suggested that we weigh each line in a certain length and calculate it's linear density"
    He did what?
    Clearly got Audible in his ears for those 10hrs of weed eating he does a day! Cause I sure didn't think of that!

  • Sociopath Mercenary
    Sociopath Mercenary ਦਿਨ ਪਹਿਲਾਂ

    I'd like to see how the lines cut blades of grass that aren't tensioned. The bending of the grass against the line could affect the way it cuts.

  • Sociopath Mercenary
    Sociopath Mercenary ਦਿਨ ਪਹਿਲਾਂ

    It's Project Farm with SCIENCE and slow motion! Woot!

  • LLTheGuy
    LLTheGuy ਦਿਨ ਪਹਿਲਾਂ

    I live in Florida, and I've never heard the term weed eater even once! I've always known it as weed whacker

  • hypertion
    hypertion ਦਿਨ ਪਹਿਲਾਂ

    One thing you didnt test was durability of each line! High speed tests to see which has a higher vs lower point of failure.

  • Chris Guglielmoni
    Chris Guglielmoni ਦਿਨ ਪਹਿਲਾਂ

    Either weed eater or weed whacker, but mostly weed eater. Here in California

  • J. Williams
    J. Williams ਦਿਨ ਪਹਿਲਾਂ

    I don't know what others call them, but I call them a lot of work for someone as lazy as I am!

  • PNW RC
    PNW RC ਦਿਨ ਪਹਿਲਾਂ

    Neat video! After seeing the weight sample, I though for sure the heavier lien would have did the better job of cutting.........With that said, the high speed DON'T lie.

  • The crap adventures of Che Simons
    The crap adventures of Che Simons ਦਿਨ ਪਹਿਲਾਂ

    Whipper snipper in Australia mate
    I don't think it's about clean cuts so much as how long your cord lasts in area of grass cut, ie cost per meter squared in both dollars and minutes.

  • Donovan Halstead
    Donovan Halstead ਦਿਨ ਪਹਿਲਾਂ

    Robert's hat is awesome. What is it?!

  • Alex Kairis
    Alex Kairis ਦਿਨ ਪਹਿਲਾਂ

    My NJ dialect hurts me so much now.

  • Nicolas Quijano
    Nicolas Quijano ਦਿਨ ਪਹਿਲਾਂ

    weed eater

  • Redakes
    Redakes ਦਿਨ ਪਹਿਲਾਂ +1

    Being from Michigan I can personally agree that we call it Weed Whacker and weed whip

  • Ask to seduce Miss
    Ask to seduce Miss ਦਿਨ ਪਹਿਲਾਂ

    "What is the solution to the equation 2 + 2?" "I dunno. What does 2 + 2 equal?" robotic noises "W E E D E A T E R"

    • Ask to seduce Miss
      Ask to seduce Miss ਦਿਨ ਪਹਿਲਾਂ

      just focusing on the 'virgin' shape of the line and the real test is to see how it cuts as it wears down too - this would add complications to your experiments though. Also, Oreg

  • Unfiltered Reality
    Unfiltered Reality ਦਿਨ ਪਹਿਲਾਂ

    You're getting into Project Farm territory here, careful! ^^

  • C4PT41N P5YCH0
    C4PT41N P5YCH0 ਦਿਨ ਪਹਿਲਾਂ

    6:58 did- did you just say interestring??

  • Joshua Charlery
    Joshua Charlery ਦਿਨ ਪਹਿਲਾਂ

    Weed Wacker**

  • Jarrett L
    Jarrett L 2 ਦਿਨ ਪਹਿਲਾਂ

    I use star i think or its a plus

  • TheREALHelly
    TheREALHelly 2 ਦਿਨ ਪਹਿਲਾਂ

    weed whacker or whipper snipper.... this is coming from a young whipper snapper

  • Der Kommentarschreiber360
    Der Kommentarschreiber360 2 ਦਿਨ ਪਹਿਲਾਂ

    I think it would be interesting to see what it looks like when somebody pops a lens out of their eje in slowmo

  • Jynxer JOHNSTON
    Jynxer JOHNSTON 2 ਦਿਨ ਪਹਿਲਾਂ

    I ran a stihl 450 fs for 3 years 10 hours a day. I have used every kind of blade from a the star to a skill saw blade to cut down 8 inch tree trunks. We would use string line. it really depends on the shape of the line and the density of the brush you would cut to go with what shape of line we would use.. At the end of the is also traveling slower then the inner part of the line. The star moves air evenly and cuts better because the speed at the end of the line is distributes the power from the center out is distributed quicker
    and more evenly.

  • Dudu
    Dudu 2 ਦਿਨ ਪਹਿਲਾਂ

    In Quebec some call it a ''fouet a gaz'', which literally translates to gas-powered whip

  • Pekka Puupää
    Pekka Puupää 2 ਦਿਨ ਪਹਿਲਾਂ

    Buy oregon's unique saw side line....
    It is good. 😉

  • Karl the Pagan
    Karl the Pagan 2 ਦਿਨ ਪਹਿਲਾਂ

    7:05 turbulent flow is the best!
    Just trying to stir up your beef with Derek a little more. ;)

  • Pavel Rak
    Pavel Rak 2 ਦਿਨ ਪਹਿਲਾਂ +1

    We call it in Czech "křovinořez" 😁 most important for me is durability, not the shape 👍 Exchange in half of work sucks 😁

  • Trevor Hewitt
    Trevor Hewitt 2 ਦਿਨ ਪਹਿਲਾਂ

    I just learned from a reddit post that lawn mowers actually create lift which pulls grass blades upright so they can be cut. Do you think this is another factor to consider in weed whacker lines?

  • Michael Russell
    Michael Russell 2 ਦਿਨ ਪਹਿਲਾਂ

    In Australia its called a whipper snipper or Whippa Snippa....strimmer is never ever used in Australia.

  • Ian Manners
    Ian Manners 2 ਦਿਨ ਪਹਿਲਾਂ

    Things that cut get dull, things that smash are already dull.
    Smashing/tearing the grass is the answer imo.

  • Duncan Cayenne-McCall
    Duncan Cayenne-McCall 2 ਦਿਨ ਪਹਿਲਾਂ

    Im a wead wacker guy

  • Mike V
    Mike V 2 ਦਿਨ ਪਹਿਲਾਂ

    Weed Whacker Army here; recruiting members.

  • Adam Pike Collegeman
    Adam Pike Collegeman 2 ਦਿਨ ਪਹਿਲਾਂ

    get a digital tachometer used to measure r/c airplane propeller rpm, then test how fast each type of string is spinning at the cutting area to see if that is different and or a performance factor

  • Morris Minor
    Morris Minor 2 ਦਿਨ ਪਹਿਲਾਂ

    There's an extra factor that you haven't considered here. I use Oregon Starline and have noticed that it doesn't retain its shape and then break - in use the 'points' wear down until you are left with a thin cross-section at the very end of the line before it eventually breaks, so it is really acting as a combination of thin roundline and thicker starline. Here you are just focusing on the 'virgin' shape of the line and the real test is to see how it cuts as it wears down too - this would add complications to your experiments though.
    Also, Oregon Starline has five points and the one you have here has seven. I would expect that too many points makes the line start to act more like it is a round line, ie the spaces are as important as the points

  • Hunter Borman
    Hunter Borman 2 ਦਿਨ ਪਹਿਲਾਂ +1

    Use me as a "Weed Whacker" button

  • Martin Johnson
    Martin Johnson 2 ਦਿਨ ਪਹਿਲਾਂ

    if you had a 2mm circle, and 2mm star line, would the star not go blunt and turn into a circle, with a smaller circumference than 2mm, before it breaks? (same with all shapes). We wont see the line going blunt while only cutting 3 blades of grass, I feel like circle line must be the way to go, when cutting on a larger scale due to it holding it's shape for longer.

  • toomdog
    toomdog 2 ਦਿਨ ਪਹਿਲਾਂ

    You know what I saw? They all went through the grass.
    My takeaway is to buy the one that breaks the least (most durability per dollar). Kind of disappointed you didn't address that too, Destin

  • Dohan R
    Dohan R 2 ਦਿਨ ਪਹਿਲਾਂ

    Most call it a "weed eater" in South Africa as well.

  • M Scott Johnson
    M Scott Johnson 2 ਦਿਨ ਪਹਿਲਾਂ

    Wee Deeder. It's called a wee deeder.

  • Sí Mon
    Sí Mon 2 ਦਿਨ ਪਹਿਲਾਂ

    I’ve been all over the us and I don’t know anyone who doesn’t call it a weed whacker.

  • Scott Gartner
    Scott Gartner 2 ਦਿਨ ਪਹਿਲਾਂ

    Please publish which line was the quietest. Frankly, they all cut the grass, so I would think noise level would be a very important variable.

  • Yazmeli Ayzol
    Yazmeli Ayzol 2 ਦਿਨ ਪਹਿਲਾਂ

    Weed whacker is a very Canadian term...

  • XxAlphaBunnyXx -
    XxAlphaBunnyXx - 2 ਦਿਨ ਪਹਿਲਾਂ

    It’s 2 in the morning and I’m laying here watching a man cut grass in slow mo. What has my life come to 🤷🏼‍♂️

  • S Gill
    S Gill 2 ਦਿਨ ਪਹਿਲਾਂ

    In Ontario Canada we call it a weed wacker. Never heard the other terms before today.

  • Matt R
    Matt R 2 ਦਿਨ ਪਹਿਲਾਂ

    in Oz we kinda call them whipper snippers haha

  • Shadowidk
    Shadowidk 2 ਦਿਨ ਪਹਿਲਾਂ

    I’m in Texas and call it weed wacker

  • Edward's Sisters'Hands
    Edward's Sisters'Hands 2 ਦਿਨ ਪਹਿਲਾਂ +4

    Choose express VPN so your ISP and communist government will never know which trimmer line you prefer!!!

  • Brawl Stars Pro Tips
    Brawl Stars Pro Tips 2 ਦਿਨ ਪਹਿਲਾਂ

    Love seeing you guys nerd out over weed eater lines

  • Brian Brissette
    Brian Brissette 2 ਦਿਨ ਪਹਿਲਾਂ +1

    ROBERT, YOU DESERVE A SHOUT OUT,,, as you become smarter every day 🤩BB

  • Christian Aguilar
    Christian Aguilar 2 ਦਿਨ ਪਹਿਲਾਂ

    I thought everyone called it a weed wacker. I guess only my town says it

  • Bauer Gaming
    Bauer Gaming 2 ਦਿਨ ਪਹਿਲਾਂ

    We all know it’s a weed wacker not a weed eater

  • J.DEN
    J.DEN 2 ਦਿਨ ਪਹਿਲਾਂ

    My partner from California calls it a weedwhacker and has never heard the term “weed eater” in their life

  • Michael Ravetti
    Michael Ravetti 2 ਦਿਨ ਪਹਿਲਾਂ

    Always a sharp edge on a star shape to drag into the leaf. It's why twisted wire can cut you so easily.

  • Spooky
    Spooky 2 ਦਿਨ ਪਹਿਲਾਂ

    The only I can think of off the eye on top of velocity is there's a dual mixture of vectors and stress points. The star having multiple points has a higher chance of striking with a an out dia. cutting edge while having more tightly compact vectors to channel mass, which is why the sharp sharp square pulls plugs and even though the star does too they're totally decimated. The grass simply can't handle that many points of impact and separation at such a high velocity. Like a unidirectional blender were all the blades cut and pulverized at once vs a sharpened icecream scoop

  • Mark Young
    Mark Young 2 ਦਿਨ ਪਹਿਲਾਂ

    Interesting, as always, but I think the tests would be more valid WITHOUT TENSION on grass blades. I'd like to see some of the other scary accessories (maybe no longer made) w/ pieces of chainsaw chain swinging around madly for cutting thick weeds/brush.

  • bofooit gojo
    bofooit gojo 2 ਦਿਨ ਪਹਿਲਾਂ

    As a Lowe's worker, I'm just impressed at how clean/stocked their seasonal department is right now

    • bofooit gojo
      bofooit gojo 2 ਦਿਨ ਪਹਿਲਾਂ

      try the Echo speed-feed 400 trimmer head. I love mine, put it on another brand of trimmer.

  • Michael W.
    Michael W. 2 ਦਿਨ ਪਹਿਲਾਂ

    The star shape one looks like the best one.

  • Giuzeppe Edrei Meimban
    Giuzeppe Edrei Meimban 2 ਦਿਨ ਪਹਿਲਾਂ

    This gives me the Project farm vibes XD

  • LIL-Slavic
    LIL-Slavic 2 ਦਿਨ ਪਹਿਲਾਂ

    I’m in Michigan, but me and my friends call it grass trimmer

  • JoeyMac
    JoeyMac 2 ਦਿਨ ਪਹਿਲਾਂ

    FYI, the spiral antenna thing is, as I understand it, to break up the frequencies of shedding vortexes so they don't resonate together. As with many dynamic systems, natural system frequencies are to be avoided. Basically the car drives down the road, and at certain speeds, the antenna will experience shedding vortexes that match the first natural mode frequency of the antenna (or some multiple thereof) and the antenna ends whips left to right as the car drives forward. Without the spiral wrap, the frequencies along a length of antenna of similar cross section can happen synchronously and then act on the antenna body as a uniform coherent load. This can cause fatigue and destroy antennas. It's actually pretty cool to watch a plain round antenna whip sideways relative to the vehicle motion for the first time (after you realize why it's doing it)... although I'm a nerd so maybe it's not that cool...
    If you want to "visualize" shedding vortexes as they roll off a round rod in the wind, look at a flag on a pole. The flag waving motion is literally the vortexes rolling off the flagpole and moving the flag at that frequency. The frequency of shedding vortexes correlates to fluid (air) density, velocity, and the beam cross section. Some cars even use sensors to measure the frequency of shedding vortex within the air intake manifold to calculate mass airflow into the engine (for fuel mix ratio mapping). Shedding vortexes are also a big component in Lab-on-a-Chip micro-fluidic devices. Neat stuff.
    Anyways, the spiral wrap just breaks up the coherency of the frequencies along the antenna beam so they can't act in unison and whip the antenna around. An alternative method to the spiral wrap is to have an antenna of varying cross sectional thickness from base to tip... which is the primary wind-bucking mechanism used by those old electronic telescoping retracting antennas from the 90s (fat at the base and skinny at the tip).

  • TheFerrariGuy458
    TheFerrariGuy458 2 ਦਿਨ ਪਹਿਲਾਂ

    In Canada it’s weed wacker

  • Gustajuy
    Gustajuy 2 ਦਿਨ ਪਹਿਲਾਂ +6

    Robert seriously just showed up and dropped mad knowledge then dipped
    What a madman