Jon WorthNo #CrossBorderRail thread today, but instead I will post about #velocity2025 - I am speaking there at 11:00
This will be a sporadic thread about it! š
Doing something for folding bike diversity at #velocity2025 š My Birdy next to 8 Bromptons!
Half the people at #velocity2025 flew to get here, as per a show of hands
WTF
Practice what you preach people!
Gil Penalosa at #velocity2025
What he says isnāt wrong. Heās a good motivator. But we at this event know this stuff
Iām really struggling with Gil Penalosa. We know these stats. We know the problems. Iām looking for something a bit more interesting than this as itās #velocity2025
Itās like every pro bike meme turned into a keynote. #velocity2025
āWe need to do [this]ā says Penalosa over and over at #velocity2025
Who are WE?
And what are our levers to make the change?
ECF presenting their report at #velocity2025 Once itās published Iāll post it here!
Whyās that bike so huge? š¤ #velocity2025
Itās hydrogen powered š¤¦āāļø
Perhaps the only thing more stupid than a hydrogen tram. A hydrogen bike!
Tom DB š¦£@jon Remember me again who asked for this? šš¤¦āāļø
JT Leskinen@jon Da faq? š¤¦š½āāļø
Markus Peuhkuri@puhuri @milesizdead oh hell. I donāt know. And I donāt want to engage them in conversation, sorry. It might get ridiculous very quickly.
Matinoitunut Rutkustaja"Only" 30 kg. As a comparison, not-so lightweight city ebike with 100 km range is about 25 kg. Another 500 Wh battery for the next 100 km is 2,6 kg.
Fuel cells do not like sub-zero temperatures (water is byproduct), so they are not usable in Finland. One can take battery indoors for charging, discharge works fine in cold with small reduction of capacity.
trusty falxter š§ @puhuri @jon @milesizdead Lol, my 40kg mid-tail cargo bike has real life range of 90km (when my two kids are on board with me). And instead of that large tank it has a trunk. And I could easily strap on at least one spare battery somewhere.
I wonder how many children and extra tanks you can take with you on this hydrogen bike ...?
Suzanne ābionicā Veerman@jon it indeed has a 150 km range. After that, you have a bicycle without any available fuel.
Sara Joy 
@smveerman @jon unless you carry some with you in a jerry can š„
Michael@sarajw @smveerman @jon As one does! I always keep a bottle around in case I need to produce some fresh water.
Sobex
M.S. Bellows, Jr.
Oliver Wintzheimer@jon ā2 min refillā - but where? š
All these bike H2 refill stations people have at home or at work.
All these bike H2 refill stations people have at home or at work.
acb
Flo@zomtecos @jon Wow, definition of solution looking for a problem ā or subsidies.
e-bikes have a built-in "range-extender" called "legs", many have easily swappable batteries (unlike most cars) which allow even faster "refills" and most are not used on such long distances where this would really matter. 150 km is a 6h ride!
Simon š@jon do you even reach the next hydrogen station?
Marco W@jon oh lol. Sounds like the worst thing ever to have between your legs!
"Alas poor Steve, he was having great fun riding his H2 bike, until he had an accident and exploded in a squeaky pop."
Christoph Petrausch
Adam
Nicovel0 š@jon the only hydrogen powered bikes should be rocket powered. If youāre going to be silly you might as well go all the way.
PursuitOfElysia@jon It seems like whenever I see hydrogen fuel as a proposed solution for powering something, I ask them "but why not just use a battery here?" and the answer is almost always something along the lines of not trusting batteries to work.
Bonus points if it's a use case where batteries are already the widespread, commercialized solution.
Bonus points if it's a use case where batteries are already the widespread, commercialized solution.
@PursuitOfElysia Yes. Absolutely this!
@PursuitOfElysia All fuel cells are sluggish, which is why almost all fuel cell applications with dynamic load profiles have a buffer battery. A battery is therefore required for a fuel cell to be practically usable.
Mirko Adam@jon Ich mein, es gibt mehr als genug sinnvolle Anwendungen fĆ¼r H2. Beginnend mit der Chemieindustrie Ć¼ber die Stahlproduktion bis hin zum Betreiben von Frachtschiffen und Flugzeugen und vielen weiteren Anwendungen gibt es so viele Dinge, womit wir die Jahresproduktion H2 zigfach verbrauchen kƶnnen. Diese Verwendung ist nicht nur Unsinn, sie ist sogar schƤdlich: das H2, das hier verbrannt wird wĆ¼rde anderswo dringend benƶtigt werden, um CO2 einzusparen.
Wilfried Klaebe@elshid Yep... siehe auch https://www.liebreich.com/hydrogen-ladder-version-5-0/
Hydrogen Ladder Version 5.0 - liebreich
A much awaited update on Michaelās Hydrogen Ladder, now on version 5. Including 3 promotions, 7 demotions, 5 wording changes, combined use cases, and the inclusion of 4 new or partially new use cases, the new update incorporates all of Michaelās learning in the space over the last two years thanks to feedback and discussion [...]Read More...
Michael
Nils Jansen@jon Knallgasdrahtesel.
Knud JahnkeI'm sure its development has been 100% tax funded and now it needs to be shown at 5 events before it goes to a museum and the project moves on to something else...
@jon Where would a user be able to fill it up?
Dominik šŖšŗš„š¢ist das das von Hubsi Aiwanger?
@Gleisplan His Polish sibling I presume!
onterof
Mark
Michael Ormsby@jon Let me guessā¦ the āHindenburgā model? What could go wrong? š¤
RolandRides@jon misses solar panels
Adam
Ati@jon Aaaand a hydrogen car that comes in 3rd. I love how hydrogen scientists and companies producing hydrogen cars go over 25% "to wheel" efficiency vs 85-90% of battery electric "to wheel" efficiency with "there are some problems BUT charging battery takes a looong looong time". And confronted with "Hey! it's 15-20 minutes on fast charger and 10x more expensive hydrogen pump needs maybe 5min less to serve 1car and get ready for another" they go "there are SOME problems but" š
For Pete's Sake!@jon amateurs! I hit up my friend in SG-1 and my eBike is now powered by a ZPM. Max range about 4000 light years.
Speed too Is great... 0 to infinite in 7 chevrons ;)
@jon Wait, I called it ??
Well done SNCB too, I wouldn't have expected it. (SBB/CFF has always been Mr/Ms. Perfect with trains, so it's just them doing their job as usual).
Tom Tom@Sobex @jon not surprised by CFF of course, but more surprised by trenitalia. I took a Trieste to Venezia two years ago and there was a _full_ carriage dedicated to bike transport with a lot of hooks (40?) to hang bikes. Obviously one train is a rather small sample but it would be strange to have such a bike friendly policy on one line and nothing on others
@tomtom rolling stock renewal or renovation takes time.
I don't know how train are organised in Italy, but in France, there's also the fact that regional trains are managed by the various region, which do have a significant impact on such policies. (Combined with laws requiring certain numerical of bicycle slots in new trains).
Rivo Vasta@jon Very surprised about SBB, had a very bad experience with them. Felt like a second-class client with my Brompton and even had some kind of fine for no good reason and with no good feedback from the customer serviceā¦
@rivovasta Such a report can only assess the formal rules. And the formal rules are solid.
@jon They were not. Rules had one of these "Oxford comma" issue ā as I learnt were called in English (this grammatical issue is not as much identified as such in French) ā and were ambiguous, but they did not admit it was and did not make me benefit from the doubt.
@jon In short: rules said ābicycles considered luggage if folded or dismantled and coveredā. I assumed ācoveredā applied to ādismantledā. They said it applied to both āfoldedā and ādismantledā because there was no comma. As far as I know there is no such grammatical rule in French. A comma would have made it non-ambiguous indeed but the lack of it doesn't make it non-ambiguous the other way around.
