Peter Yu

Mechanical engineer @Google—prev: robotics startup, @BerkeleyME

[Peter Yu @peterxyu]

@Ziggydank I don’t want to be that guy but for compliant objects like bread, you need calipers that are constant-force.

You can make regular calipers read whatever you want by just squeezing a bit more or less.

[Peter Yu @peterxyu]

@salkatib @SmugFecundity The Platinum Elite is substantially better quality than hard side Samsonite.

[Peter Yu @peterxyu]

@financialsamura @Seanfrank That’s household income.

[Peter Yu @peterxyu]

@MeadorFTC @united United has very standard 30-31 inches of pitch in regular economy. There’s maybe 1-2 airlines in the entire world with 31+ inches of pitch on a narrowbody plane in economy, but plenty of LCCs with 28-29 inches of pitch.

[Peter Yu @peterxyu]

@humantransit This is hugely disingenuous. The 23 and 523 bus lines on Stevens Creek serve ~300 riders a day between Miller and Tantau.

Conversely, Apple has an entire shuttle network that runs all over the Bay Area, and they built a large bus dropoff area that you can see on the left.

[Peter Yu @peterxyu]

@RDKLInc @ilyamiskov Unbelievable. Congrats!

[Peter Yu @peterxyu]

@lukeanderson_ @dpoddolphinpro Disagree. “An” refers to rocket, not to this class.

Imagine if it said first instead of 600th. Could BO come out and say they just performed the “first overall landing of an orbital class rocket”?

[Peter Yu @peterxyu]

@dangaron @aakashgupta Are you sure it's going back to 45? The reporting suggests the 36 max is now permanent.

[Peter Yu @peterxyu]

@gak_pdx This thing is $627?

You know it's crazy when it costs twice as much as the Festool equivalent, which also comes in a Systainer.

[Peter Yu @peterxyu]

@gak_pdx Snap-on's ID feels very Harbor Freight. I think it's a combination of the red, the body-colored logo, the blocky overmolding, and still being a bit try-hard tough.

My favorite in this category is the Festool CXS 12 for one reason—it's very stable while sitting upright.

[Peter Yu @peterxyu]

@davidliuxyz Trainsets are the easiest part. The hard part is all the grade separations and tunneling needed below Pacheco and Tehachapi, plus the rest of the 80% of the funds.

[Peter Yu @peterxyu]

@loriara For SF this has to be all the Bay Area airports combined, but even then 2016 stats show United leading SW by 7% 🤔

[Peter Yu @peterxyu]

@signulll Pretty sure Global Entry guy is actually CBP. Only the security screening is contracted.

[Peter Yu @peterxyu]

@AppleDemoYT That symbol isn’t crossed out, it means don’t dispose in the trash.

[Peter Yu @peterxyu]

@MehdiHacks There’s only three German tool brands that make the full range of hand tools (screwdrivers, sockets/ratchets, pliers, etc): Gedore, Stahlwille, Hazet.

I would say they are all pretty comparable, but Wera/Wiha clearly lead in drivers and Knipex/NWS clearly lead in pliers.

[Peter Yu @peterxyu]

@signulll Full service airlines are entirely optimized for business travel, prioritizing schedule, frequency, and network.

The empty seats are auctioned off to warm bodies who'd happily waste two hours to save $10.

The rest is just noise.

See: La Compagnie, i.e. completely irrelevant.

[Peter Yu @peterxyu]

@RyanRadia @Nowooski Not always. Many newer ones check that the card has a chip in it but I’ve never encountered one that actually authenticates. This is why I carry a few old room keys of various types with me.

[Peter Yu @peterxyu]

@ohitstarik CAHSR and the NEC have spent something like $15 billion in the last ten years combined, which when divided by the total number of U.S. emplanements over the same period, works out to less than $2 per passenger.

[Peter Yu @peterxyu]

@usgraphics There are a lot of examples of the latter being better though, e.g. paper sizing, Eurobox/Europallet, Torx drive sizes, IEC wire gauge, CCS2. Even the Schuko electrical plug is obviously the safest and most logical plug design despite being bulky.