Nick Gobin

🇨🇦 Mech eng

[Nick Gobin @NicGobin]

@theiaincameron Pretty sure Canada 🇨🇦 has Sweden beat for #1 most islands in the world. The number of Canadian islands listed in the Wikipedia article is almost certainly off by an order of magnitude.

[Nick Gobin @NicGobin]

@bwdelisle @its_mizuko_ 6 x 18 != 72

[Nick Gobin @NicGobin]

@duncancampbell @RichardMeyerDC Why full nameplate backup? Shouldn't N+2 (or+3 or +4) be sufficient?

If you have 100 MW load & 10 MW units of gas generation, 13-14 units should get you 8760 hours/year with a few 9's of reliability.

Full backup is only needed if unit size is similar to total load.

[Nick Gobin @NicGobin]

@AndreasenJack @nukeadvocate By amortizing it over an enormous quantity of MWh generated. Lifecycle emissions numbers that include cement are available, and nuclear (and hydro) blow any existing CCS project away by an order of magnitude at least.

[Nick Gobin @NicGobin]

@Sheidows @garyblack00 @usma1982 @MatthewDR Also, people buy and operate coffee shops. And when they do, they often buy 10-20 tables with only two seats. The 2-seat table-makers sell lots of tables to private smaller businesses.

[Nick Gobin @NicGobin]

@MegaWattXinfo @MLiebreich @CleaningUpPod Amazing to hear that someone is finally pursuing it seriously! The comment about E-W vs N-S interconnectors should be printed and framed. I hope you achieve it in 5 years, not 15. (And Canada needs to build overland E-W transmission too - no submarine cables needed!)

[Nick Gobin @NicGobin]

@heysamtexas @duncancampbell @FracSlap What do you use to review diffs? That is the last main use of the IDE for me.

[Nick Gobin @NicGobin]

@sumpfgas @aviationarchive 40 lifts per day for fuel, food, and messages. Lifted fuel 5 gallons at a time, and even changed bulbs on running lights in the wingtips from the car! Bananas!

[Brian Platt @btaplatt]

In a speech to the World Economic Forum, Mark Carney says middle powers such as Canada must accept that the rules-based international order is effectively dead, and great power rivalry with is here to stay. Key excerpt:

[Nick Gobin @NicGobin]

@AEDerocher I'm just watching to follow E4!

[Nick Gobin @NicGobin]

@DirkBruere @DJSnM The fractures that are looking at were not in bolts, they were in mounting lugs.

[Nick Gobin @NicGobin]

@whatisnuclear @gordonmcdowell So the entire craft builds up a huge negative charge over time? I wonder what kind of weird effects that would have.

[Nick Gobin @NicGobin]

@mcrs987 @SpaceX Amazing. We need a slow-mo clip of the ignition sequence though!

[Nick Gobin @NicGobin]

@PZeniewski There is still a credible case that LNG is already substantially better when the end use is power generation. This study calculates emissions per MJ (good for industrial heat). For electricity, LNG is likely to be used in CCGT which is >20% more efficient than even USC coal.

[Nick Gobin @NicGobin]

@PZeniewski This chart confuses the heck out of me. The note for the Y-axis scale says it uses GWP-20, but the yellow dots say that they represent the effect of calculating methane with a GWP-20. What is the difference between the blue bar and yellow dot if they're both GWP-20?

[Nick Gobin @NicGobin]

@bpolge @is_OwenLewis @Jordan_W_Taylor And in the case of Radon, that half life is only ~4 days. Kind of defies the "long duration" design basis of ion engines...

[Nick Gobin @NicGobin]

@TSLAFanMtl Those tents are extremely common for all sorts of trucks. Many ICE truck owners here in BC have them. A quick google will give you a dozen options. What is insane about it? Maybe that it doesn't take advantage of the Silverado mid-gate in any way?

[Nick Gobin @NicGobin]

@whatisnuclear Wow, that effect is huge! Makes sense though - thank you!

[Nick Gobin @NicGobin]

@oskarelmgren @DJSnM At mach 1.0, the cone should be *very* flat. This is intuitively correct, if you imagine the shock as a superposition of circular ripples (pressure waves) from a moving object. At 1.0, it's like riding the edge of a large and expanding circle.