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

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Published 2020-06-28
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⇊ Links to buy the winning weedeater line ⇊

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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%20e…

AFFILIATE LINKS:
(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: 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:
📷Camera I use : amzn.to/2VSiruw
Favorite Lens: amzn.to/2KPDQ1a
Wide-angle: amzn.to/2SlPchR
My Tripod: amzn.to/2Yl6RtJ
My Multi-tool: amzn.to/2zGm5Pz
Favorite Shoes: amzn.to/3f5trfV
Everyone needs a snatchblock: amzn.to/2DMR4s8
🥽Goggle Up! : 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: www.smartereveryday.com/store

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OTHER TESTING
Project Farm Tested Durability:    • Best Brush Cutter Blade? Let's find o...  
He tested other considerations here:    • Best Trimmer Line? Let's Find Out! Ro...  

I thought this was a well written break-down of different shapes: www.saraheberle.com/understanding-the-various-shap…

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,

Dest

All Comments (21)
  • @smartereveryday
    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
  • @rieskimo
    Robert's a real one, good call on asking him to be involved. He really added to the video and made a great outro.
  • @Vorael
    Robert: "It seems likely that this line, being lighter and possessing a smaller diameter, would travel at a greater velocity, perhaps facilitating a cleaner cut." Destin: "ShARp shARP sQuaRE"
  • "random weedeater dude we picked off the street suggested we calculate the linear density of each wire". Never change Destin. Your enthusiasm and good nature are a contagious blessing.
  • @mrblacktrh
    I love Robert’s humility when he doesn’t consider himself an expert, yet works with a string trimmer 8-10 hours per day. Compared to me, a weekend warrior, he’s a freaking professor in the art of weed wacking! ❤️
  • @gustajuy5983
    Robert seriously just showed up and dropped mad knowledge then dipped What a madman
  • @macrobioscopic
    The fact that Robert is not objecting and play along is quite admirable
  • @mutanttepig4759
    Robert is probably the best guest that you have had on here for the reason of him just randomly being there and you pulling him in because of his expertise with weed eaters.
  • @expiredlamb2000
    I wish I had the courage to just yell out "HEY WEED EATER MAN" to someone I don't know, and ask them to come over.
  • @die_ware_jacob
    I love how Destin took the liberty of asking Robert's opinion, it gives us an in the field perspective and makes the video feel more authentic
  • @dangitnicky
    8:50 I love how Robert the Weed Eater dude came in and improved the experiment almost immediately.
  • @BigBear--
    One main problem I see is the tension put on the blade of grass. In the “field” the blade is sorta just hanging there freely, I think it messed with the dynamics of the cut by putting the blade of grass under tension…and we’d see very different behavior if only one end was held in place and the other allowed to dangle freely.
  • @mattebbs9253
    Robert: I'm no expert. Also Robert: Lemme school you up on linear density.
  • @cryosightgaming
    Destin: "Random weed eater guy! check this out!" Weed eater guy: "I suggest you should weigh each line in a certain length and calculate its linear density"
  • @Dammy_yt
    Destin: HEY WEED EATER MAN! Robert: what in th-
  • Robert: I wouldn't say expert Also Robert is clearly an expert This is the less often seen end of the Dunning-Krueger effect.
  • @jasonthesnow
    Idk why but Robert gave off the friendly like “oh how nice this dudes making a little YouTube video” vibes (but like not in a bad or demeaning way like a genuinely interested and helpful way) so I like to think when he subscribed at the end he was all “oh wow he’s got 8 million subscribers this isn’t little at all”
  • @ericfrancis7816
    This is totally one of those "if you told me 10 years ago I'd spend 16 minutes watching a video about weed eater line and be riveted by it I'd have called you crazy" moments.
  • @timrussell1210
    I love how much more Alabama Destin's voice gets when he is talking to a neighbour as opposed to the camera