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>crushes your FTP
*Jelly Flows from my pants"
Mad Respect.
*Rethink my views on Giant*
what the fuck are you

What are some good transportation museums to visit in your country?
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>Don't have a country
perhaps he is a cosmopolitan citizen of the world?
Just sad. Heard train sets of our first mainline ac EMU would be scraped by rail operator.
The closest thing we get is a "railway museum" that's more like a railway park / outdoor exhibit, crudely carved out of an old station. .
Wright Patt Air Force Museum in Ohio, also the Cincinnati History Museum. They have a full size replica of a steamboat you can walk around in.

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I just butchered the drivetrain on this old roadbike, thoughts?
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actually wait, you have a bt rear axel not qr
so do same as i said, but use socket wrench to tighten, not qr
But the whole problem is that regular riding will loosen the nuts on the threaded part of the axle, causing the wheel to slip and the chain to lose tension.

When I had to deal with this (I was using a biopace chainring on a fixie) I just had to live with it until I sold the bike.
Just get a SS cog and chain man, these ghetto conversions never work well
Can't you just tighten them harder?
How tho
If that's the case it would have happened regardless of riding it SS or geared. Tighten the axle nuts down firm.

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I just got back from Tokyo and realized how many Transit cards I had piled up. Has anyone noticed themselves collecting passes, temporary or otherwise?

From top to bottom, left to right: MetroCard (New York), Ventra (Chicago), Breeze (Atlanta), Pasmo (Tokyo), and it probably doesn't count, but Delta Skymiles.
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I wish I could get a real sky miles card. Looks like yours is pretty old. I have a really old United one but I live close to Atlanta now so there's no point in using it 95% of the time.
You know it's possible to read what you've scribbled out using photo editing programs
Suica and Icoca are both inside the red block starting from 10 years ago
have to collect em all
Did you actually read >>1118475?

What does /n/ think of genesis bikes and should I get one?
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Was purchasing a bike recently (EU) and looked into Geneis Croix de Fer among other options.

They look really good and are no doubt solid bikes, but 1200£ or ~1500$ for 12kg/26lb bike with Tiagra groupset seemed steep.
>I have no idea
>I'm still gonna give advice

Shut the fuck up and die please.
Wouldn't have guessed they're Reynolds frames at first look. That's neat.
Genesis is a pretty large brand with a strong presence in the UK. For a little while their pro team raced on really high end steel frames.

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Is this our guy /n/ ?
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hahahahahAHAHAHAHQA your fucking stupid
cager enabler,fuck man
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>which means someone will find a use for it other than transportation.
Or just other, more appealing forms of transportation.
Missouri can into hyperloop?


Traveling from Kansas City to St. Louis in 23 minutes isn't off the table after all.

A group of Missouri entities have formed a public-private partnership, Missouri Hyperloop Coalition, to advance efforts to build a Hyperloop route along the Interstate 70 corridor.

In September, Los Angeles-based Hyperloop One announced the 10 finalists in its global challenge, and the 240-mile Missouri route seemingly was eliminated from the pack. The challenge asked applicants from throughout the world to make their case for getting a Hyperloop route in their city or region.

Missouri was never fully out of the running, KC Tech Council President Ryan Weber told the Kansas City Business Journal. Hyperloop One needed more information in the Missouri Department of Transportation's application, and once the team provided more details, the Missouri route secured a finalist spot, Weber said.
"It is clear from our conversations with Hyperloop One that they were impressed with our initial proposal," Andrew Smith, vice president of entrepreneurship and innovation for the St. Louis Regional Chamber, said in a release. "Our proposed route connects two major metropolitan areas in the same state along with a major research university, and we have the most favorable regulatory and cost environment of any proposed build site. Hyperloop One is encouraging us to take the next step with an engineering feasibility study."

MoDOT will lead the feasibility study, which is expected to cost $1 million to $1.5 million, Weber said. The coalition is raising money for the study, which Weber anticipated will mainly come from the private sector. In addition to MoDOT and KC Tech Council, the coalition includes the St. Louis Regional Chamber, the University of Missouri System and the Missouri Innovation Center in Columbia. The private partnership will come into play once regional and local engineering and construction firms begin working on the feasibility study, Weber said.

"This public-private partnership demonstrates Missouri's commitment to building one of the first Hyperloop systems in the world," Hyperloop One CEO Rob Lloyd said in a release. "We look forward to working with the Missouri Hyperloop Coalition in continuing to develop Missouri's Hyperloop One proposal from Kansas City to St. Louis."

Hyperloop One's mission is to transform transportation through its ultra-fast Hyperloop system. The tube-based autonomous transportation system uses electric propulsion to accelerate pods that levitate slightly above the track, thanks to strategically placed magnets. The system also would offer on-demand service, departing stations as frequently as 20 seconds.

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Velomobiles can't replace cars, but they can replace scooters and mopeds. Scooters and mopeds pollute a lot more than cars or trucks, and the exhaust is a lot unhealthier for bystanders. Also as velomobile production increases, they'll become cheaper and cheaper. You can already buy pic related on the second hand Dutch market for 2k euros. Soon that will be 1.5 and lower, it'll be an adequate alternative for mopeds.

What do you think?
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The Quest is from the Netherlands.
The problem with these is they have terrible drivetrains

they either have multiple idlers and or chain tubing, chain tensioners and other crap. It's really a big mess. If not properly maintained, you're going to lose a ton of watts.

What velomobiles need is a driveshaft under the main tunnel and get rid of the chain drive completely, or figure a way out to create velomobiles without idlers and tubes and tensioners.
driveshafts are extremely inefficient compared to chain drive
and jockey wheels don't really reduce efficiency that much
most bent drivetrains have a tensioner, and either 2 idlers or a criss cross rig with 1 idler
that's really not all that much wasted power, especially since there's almost no load on the idlers at all
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I don't even want to compare it to mopeds, only to pedal powered ways of travel. I really hate the designs of those velomobiles, sure they're fast but these things look so frail and are still too expensive. I honestly think a pedal car might be a nice alternative if you're looking for a bike on more than two wheels and care more about cruising than good speed.

I'm looking for a long lasting track pump sans the planned obsolescence(unreplacable parts and such)
Also I'd like to have a pump that pumps up to 10-11 ish bar without effort,even if it takes more strokes.
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Will look into zefal,thx anon
Park Tool is garbage

my pressure gauge stopped working after a year
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Because it's a cheap pump and gets banged around quite often. I suppose it's within 10 psi. I'd use something like an Accu-gage if I wanted to get more specific. But I usually just go by feel and not by some specific number.
the pump maker does not matter if it you need lots of force to open or close it on the valve. it has to come of easily like those at gas stations do to not hurt fingers.
Weird, my Lezyne floor pump stopped working after a few months, and I've never been able to figure out just what broke. Someday I'll tear it apart to find out. The Joe Blow that I've had for like 10 years has had one little air leak problem that was easily fixed.

Nothing enrages me more than people passing me too closely, flipping a bird, then driving off. This happened to me three times today. No type of behavior is more indicative of someone being a humongous pussy. Pull over you little bitch so I can tell you how sad your life is and maybe beat the shit out of you with my front wheel. anyway....I am wondering what some things are that you have done in revenge to motorists who have passed you too closely. Once I was riding up this road that was a dead end and these two harley fags buzzed me pretty closely, obviously intentionally. I get up to the top of the road and their bikes are parked and they are nowhere to be found, probably off looking at the view point or etc. I picked up an edgy rock and started to scrape up their pristine paint on their gas tanks. I threw their helmets into the woods after filling them up with the sticky drink mix in my bottles. Then I took off down the road. Revenge is sweet, make me feel better or give me some ideas......
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>I might be an asshole but I just cant control how these pricks make me feel
you can
you should
the majestic animal approach is a good one
do you guys think that strapping a shotgun to my back on rides would be good deterrence?
normally i stare them down if i can
i would do this if i had a gun
but it does increase ur chance of actually dying if u get into an altercation
>doing hundreds of euros of damage on someone's motorcycle's paint for no real reason
Honestly just kys dude.
Harley riders aren't people 2bh

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Are trains fun to ride on for a comfy afternoon down the countryside? Or are they shitty and just a bus on rails? I live in Chicago so I could hop on any of the 15 Metra lines and go somewhere
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I took a commuter train because I was giving away a bird to someone and had to travel pretty far out to go there.

There was fucking nobody on the thing. It was mid-day in late spring, though, iirc.

It was comfy but I wouldn't do it just for fun. I would take the train again, though, it was really cheap. Like six bucks or something each way. IIRC a monthly pass is only a bit more than a bus pass, though you can't use the train pass on the bus or vice versa.

I've been on the VIA rail line between Montreal and Quebec City for work and while it was nice, definitely shell out for business class. Economy is meh. Comfy seats but there's nothing to eat or drink and it can be a long fuckin' ride. In Business, they serve you a nice meal and you get all the booze you can drink for only like 30-ish bucks more, basically the same price as an equivalent night out really. Again, was comfy, would recommend over short flights, but it's not worth it to ride for fun.

Is this the train you ride?

Seeing those a e s t h e t i c LRC coaches slumming it behind a fucking Genesis will never make me not sad.

Imagine the world where they simply re-engined the old LRC locos and they're still going strong a la the HST125's

Of course Amtrak skimps on paint, they're a government affair and all those brown people's welfare has to come from somewhere, you know...

The NEC really ought to be spun off of the rest of Amtrak and into the hands of someone who actually wants to invest in it and keep it not-shitty.

Imagine a world where cancerous Amtrak locomotives don't exist and only E and F-units are allowed to haul passenger trains...


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Sup, /n/. What do you think about my bike? Is it good for any kind of offroad riding? And if it is, for which one it's good for?What kind of upgrades would you recommend for me?

It's 5 years old. Unfortunatly, tires are a little bit fucked up, but aside that it's in pretty good condition.
19 replies and 5 images omitted. Click here to view.
deore is decent
for shimano stuff there is a pretty clear hierarchy in terms of which components are better
really, the only shitty things on that bike are the frame crankset and brakes
the fork is actually pretty nice
its like a weird cross between a bso and a pretty decent bike
understood, thanks
Its a shit bike with decent components
Would it be better with an air shock?
geometry trumps suspension, always. cant put cane creek shocks on a wonky frame and expect it to rode well, but you definitely can put entry level shocks on a nice frame and have something rideable

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It's still going edition.

Old thread
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The choice office must've been up in that turret.
Looks like they were building up trains as shit then as they are now.
>Putting all the weight in the rear of the train.
Congratulations on one year!
A friend of mine at my local model railroad club was fireman on the Rocks Aerotrain back in the 50s. He said it was the single most undesirable assignment on the whole railroad. Absolutely no one wanted to be on that thing.
Did he give any particular reason(s) why?

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Why does the space shuttle produce so little lift when it has more wing area than a 737?

>Empty weight: 151,205 lb
>MTOW:240,000 lb
>Wing area: 2690 ft2 (249.9 m2[15])

>Empty weight: 80,200–98,495 lb
>MTOW: 177,000–194,700 lb
>Wing area: 1,341.2 sq ft (124.60 m2)

Would it really have killed the shuttle designers to incorporate some kind of high lift system?

Also here is a free online MIT class about the space shuttle's design which features lectures by one of the lead designers:

Comment too long. Click here to view the full text.
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AtomicRockets is a good resource. Another is http://www.aerospaceweb.org

If you look up the full Constellation space colonization program you will likely cry at the yet to be tapped potential.
It is hard to get an okay to dedicate the funds to multi-billion dollar programs. Nevermind one to make basically a swiss army knife that can hit Mach 25 AND carry the equivalent of a main battle tank worth of cargo into space, then come back, land, refuel, and turn around to do it again.

Ignoring that bit of depression.... Detached bow shocks and hypersonic goodness.

At hypersonic speeds, you're going so fast through the atmosphere that the gases can't get out of the way fast enough, and start getting compressed. As gas compresses, it gets hotter, and a bunch of really inconvenient chemistry starts happening at a time when all the vessel you"re in wants to do is slow down.

The boundary between the omg-compression, and where the gas through which you"re traveling can conduct the sound of your passing normally takes the shape of a cone which gets narrower and narrower as you go faster and faster.

Now, if you happen to be pointy, you minimizehow much DRAG you produce, allowing your propulsion system to push you faster instead of only counteracting the pair's tendency to slow you down. As a visual aid, imagine you're going 300 m/s, and you are a needle. In one second, your propulsion system is putting a set amount of energy out. That energy is split between pushing you, and anything in front of you forward (and re-mass backward of course). So as a needle, you're carving a 300 meter tunnel of vacuum through the air by basically plowing into the air in front of you and accelerating it with you until it can diffuse out of the way. It's a gross over-simplification, but I find it helpful to wrap one's mind around it. Thin-long shapes with minimal cross-sectional area are ideal for hypersonic powered flight.

Now.... The zone of interesting chemistry is called a Mach cone, and if you go with a thin needle-like shape, heat transfer becomes increasingly problematic because of exothermic chemical reactions that happen in the shock layer.

Now. Forget the needle. You are a VW Bus. You are the definition of blunt object. You make a shit ton of drag, but something interesting happens to your shock layer. It piles up, and thickens. This pulls the more exothermic reactions away from the skin of your bus.

Well... Not exactly, but it does make a great mental image... Anyway. Read up if you plan to do anything serious with this knowledge, or get a copy of Kerbal Space Program and some mods to eff around and get a feel for it.

Space, and atmospheres are cold-hearted
, only matched by the human species.
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SOOooooo?,toretarded,,, or, toadvanced?,
,,Squash me on the technical.,,
,Zero fuel,, unlimited lifts.
Doesn't sound bad desu, not as much tension on the rope needed. Still, it'll lose rotational velocity eventually. Just give it it's own thrusters to keep it rotating (refueling required as needed)

Also make sure the path of orbit isn't over any big cities, as any satellite could come and push it towards earth, making it a weapon, again, still much less deadly than space elevator
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>lose rotational velocity
Catchingspacestuff,,, puts the V back on.,
,,itsa balanced system, liftodrop.,
,,,Phobos,, 4000mules high, surface speed=1500MpHs,,, 4000 mulestring spins 8 hOurs,, SUPER gentle lift!

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also meme thread
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please tell me thatsnot real I'm so sad
>meme cyclist from where i live
it's real, but he does still ride occasionally on a modified mountainbike.
It's great how the incident made Martyn even less virgin than he was before. I've been following his recovery after he got from hospital and it didn't take long he was riding down some stairs with wheelchair. And now he rode whistler with that thing.

I mean skills are for virgins while chads might have the balls. But it's not bad to have both.

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still riding bike like an alpha chad

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It seems to be time for a new thread.

For those of you who missed the first exciting instalment, I'm using OpenTTD to build a complete working virtual model of the entire British railway network. Ask me anything.
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Which is why I haven't bothered with the Eurotunnel.

I conducted a referendum in my head and decided that my model was better off out of Europe.
>infrastructure maintenance
It is one of the things you can do to make airplanes more difficult. As airports will cost a lot in maintenance, you will absolutly have to max out their potential capacity to still make a profit. As for rail or road, the difference is not that noticable.
Hey OP, what are you planning on doing when you get to Surrey? Does OpenTTD let you [spoiler]make the trains run as fucking awfully as South West Trains[/spoiler] did?
>implying anything is as bad as southern
I liked SWT don't hurt my baby

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