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

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

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⇊ Links to buy the winning weedeater line ⇊


What’s it called? Weed Eater, String Trimmer, Weed Wacker, Whipper Snipper?
Google Trends map here:

(When people purchase from these links it will support Smarter Every Day.)

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THE WINNING SHAPES (As a result of this EXTREMELY limited data set)
Oregon “Gator Line” (Called “sharp square” in the video)
288 ft ~ $15: https://amzn.to/2CFXewP
895 ft ~ $30: https://amzn.to/2ZlvTHU

Star shaped line
Cyclone Brand
140 ft ~ $15 https://amzn.to/2AeCmfq
855 ft ~ $50 https://amzn.to/387oPCV

(I couldn’t find Shakespeare for a good price on Amazon but here is the style I tested)
125 ft ~ https://amzn.to/2ZnBRbA

Other stuff:
❓Mystery Item (just for fun): https://amzn.to/38aNmXv

Things I use and like:
📷Camera I use : https://amzn.to/2VSiruw
Favorite Lens: https://amzn.to/2KPDQ1a
Wide-angle: https://amzn.to/2SlPchR
My Tripod: https://amzn.to/2Yl6RtJ
My Multi-tool: https://amzn.to/2zGm5Pz
Favorite Shoes: https://amzn.to/3f5trfV
Everyone needs a snatchblock: https://amzn.to/2DMR4s8
🥽Goggle Up! : https://amzn.to/2zG754g

Also, if you’re interested in a Smarter Every Day shirt etc. they’re really soft and you can get there here: https://www.smartereveryday.com/store

Project Farm Tested Durability: https://www.youtube.com/watch?v=HVJz7Gqn_SY
He tested other considerations here: https://www.youtube.com/watch?v=89BkJF0kVyc

I thought this was a well written break-down of different shapes: https://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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53 Responses

  1. SmarterEveryDay says:

    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 https://www.patreon.com/smartereveryday
    Thank you!

    • Fuck Google says:

      How do you know people searched Google for weed eater because they use the term regularly and not because they have never heard it before but wanted to know more?

      Very unscientific.

    • Rakibul Islam Roman says:

      Iiii iiiii করে না কি করবো বুঝতে পারছি না কি করবো বুঝতে পারছি না oo করে না o

    • xMr_ Lemons says:

      @Wild_Beast from YT no one collects it afterwards either way

    • Bhavya Kabade says:

      SO I believe the spiral thing is to reduce vortex shedding and stop the string from just flapping about, causing tiny amounts of surface turbulence by using a spiral helps that’s why, at least that’s my initial theory

    • Theodor Schmidt says:

      Maybe the star shaped one takes a chunk out of it that makes it look like a clean cub because of the divots in it.

  2. Jacob the Propagandist says:

    In the future, humour will be randomly generated

    *w e e d e a t e r*

  3. ej barro says:

    we call it “grass cutter” since it cuts GRASS

  4. Bruhtonium says:

    Edit: thanks YouTube algorithm, this was an interesting video

  5. Brett Jensen says:

    I live on the west coast and have never heard anything other then weed wacker

  6. Brennan Probasco says:

    New series idea: Smarter every day ft. Robert on literal rocket science.

  7. D5quared91 says:

    Australians would call it “whipper snipper” lol

  8. Basssie22 says:

    6:58 did you really just say: “intereSTRING’? Destin… you master of masters

  9. yakikadafi says:

    me: lives in an apartment in an urban jungle. the most natural thing I have seen in my life is a rat when waiting for the metro at the station.

    Youtube: which shape cuts best

    me: ooh I wonder which shape it is! I must know!

  10. MelloAngelWolf says:

    Larry: In the future entertainment will be randomly generated

    Robot: weed eater

  11. Hep says:

    From Toronto. Always been weed wacker, never heard weed eater till today.

  12. Helotick says:

    I’ll keep using the term “weed wacker” because “weed eater” should be reserved for the hash brownie lovers.

  13. Broseph McJoseph says:

    I’m a simple man. I see “weed” in the title, I click.

  14. All_Natural says:

    POV: you’re looking through the comments to see if Robert commented…

  15. Nathanael Zirps says:

    Destin: “Alabama people are with it”
    Robert: “… some of us are”
    Me: *ROTFLOL*

  16. Matt Ebbs says:

    Robert: I’m no expert.
    Also Robert: Lemme school you up on linear density.

    • Kyle Oien says:

      I like how experts often times say they are not an expert.
      They realize that there is more to learn after all the time they have perfected their craft which I think truly shows their intelligence

    • JV says:

      @Kyle Oien that’s called Dunning-Kruger effect

    • Mirzac Andrei says:

      ​@JV That’s imposter syndrome. Dunning-Kruger effect is the opposite of it. Its when people who are incompetent at something are unable to recognize their own incompetence.

    • Microman Channel says:

      @Mirzac Andrei Impostor syndrome is feeling undeserving of what you get, thinking you don’t and never will deserve it. The Dunning-Kruger effect is someone who understands the true size of their field realising that even though they know far more than others, they still have way more to learn.

  17. SweetDreamsAreMadeOfThese says:

    It’s like Smarter Every Day and Project Farm had a lovechild!

  18. Gaming with Azian says:

    Ah yes. “Why did the chicken cross the road”

  19. Alan Douglas says:

    Australian here, it’s pronounced “whippa snippa”

  20. Alif Khabali says:

    Me :
    “How high are you?”


    “Weed eater don’t eat weed”

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