I personally watched Scott spend years working on the project and obsessively iterating on the steel, the vibration pattern, the circuitry, the handle, and the form factor. Scott is a hacker, one of us for sure. I mean, the guy built a custom robot just to measure cutting efficiency...

The knife is amazing and exactly as shown in the video. Rand Fishkin has a nice short on LinkedIn trying out the knife too. I think he shows one his (sharp) kitchen knives slicing through a lemon, then the Ultrasonic. It's astounding.

Disclaimer: I am a (tiny) angel investor in Seattle Ultrasonics.

▲

tptacek 6 hours ago | parent | next [-]

Does that video show him doing actual prep? I 100% believe he made a knife that can make a paper-thin slice of a lemon. But that's not what a chef's knife is for. As someone who thinks the world would be a better place if this product worked and was successful: for god's sake record someone processing an onion. That's what matters.

▲

gurgeous 6 hours ago | parent [-]

In Rand's video he does an "old" lime, mozzarella, and a shallot. It's just a quick vid he did in like five minutes but it shows some prep. Rand is a prolific amateur chef...

https://www.linkedin.com/feed/update/urn:li:activity:7374472...

Disclaimer: I've enjoyed many delicious meals at Rand's table

▲

tptacek 5 hours ago | parent | next [-]

So, I just watched this, and he's not processing a shallot, he's just slowly talking thin slices off it. Also: even when my MAC is rolled over and needs a hone, it still does a lime just as well.

I'm not saying this knife doesn't work just that I'm noticing that none of the videos show it working.

Seriously, it is only a little bit of an exaggeration to say that the entire job of a chef's knife is to quickly process an onion. What's especially weird is that even an inert knife with its factory edge will show well in an onion dice video!

▲

ramraj07 5 hours ago | parent | prev [-]

If thats the actual best demonstration thats not good at all. Like either he is the worst cook ever or the knife is actually difficult to go down straight with..

	▲	4 hours ago \| parent [-]
		[deleted]

▲

system2 2 hours ago | parent | prev | next [-]

Rank Fishkin from MOZ? Why is he testing knives on LinkedIn?

▲

sublinear 4 hours ago | parent | prev [-]

Free idea: put this tech in a mandoline slicer.

Even the best tend to struggle with consistency and can only go so thin due to all the friction. An ultrasonic mandoline that can overcome all that would probably fly off the shelves and better match the original industrial intent.

	▲	kristjansson 3 hours ago \| parent [-]
		On one hand I would buy that instantly. On the other hand, it’s already missing small pieces thanks to my current mandolin. Not sure I want to make my scariest utensil scarier.