I'm currently writing an assignment, trying to explain the behavior of a piston, as the crankshaft makes a full revolution.
I can understand intuitively that the vertical velocity of the piston is dependent on the vertical component of the tangent velocity at the crankshaft, but I feel like the acceleration curve follows a less intuitive path.
Is there an intuitive way of understanding why the acceleration would be highest at the point in which the velocity stops/changes direction?
Displacement/Velocity/Acceleration curves for reference: https://imgur.com/a/u8udinL
Any help would be greatly appreciated!
Am I an idiot, it's my first time working on a bike and I may have bitten off more than I can chew. The motor was a mess and I needed to replace the whole top end. Because of risk of metal through the motor (and suggested by you lovely people) I pulled it down all the way to splitting the crankcase.
I cleaned it all out and put it back together and was in the final steps of assembly today. Now the top dead centre mark on the flywheel is how I set everything up, the crankshaft and the valve clearances and what not, as per the instructions here:
https://www.cyclepedia.com/manuals/online/cpp-146/engine/cylinder-head/#Installa
The thing the throws me off is, the top dead centre mark is not when the piston is all the way at the top of the cylinder. Am I an idiot and worried about nothing...or is something not right, I can't seem to think how that can go wrong so long as all my marks and things were right (which they were) in the assembly process.
Thought a few of you might be interested....
A teammate designed a removable TDC mod for the Tippmann M4 as he didn't want to tap his receiver. I helped made up a prototype for him that he's successfully ran in his Tippy with an r-hop for a couple of months now, so he's ordered a batch to sell.
He's only got 30-odd to sell for now, and is based in the UK.
Post on the Facebook Tippmann group:
https://www.facebook.com/groups/tippmann.airsoft/permalink/1670548356520848/
To make a long story short, my BF has struggled with severe anxiety, ocd and depression since puberty. He got involved with drugs because he couldn’t cope. When he met me he told me he was clean but it was very clear to me from the start that a relapse would be inevitable.
Last year he tried to overdose on xanax and he was sent to in-patient treatment. He was doing a little better after the treatment up till now, half a year later, he confessed that he started using a month after the clinic, lost 4k to a scam, and wanted to kill himself. Last weekend he was high and kept talking about how I was the only reason I was alive and I couldn’t handle it on my own anymore and told his parents. Paramedics came. Emergency mental health care was called. He was sent to a rehab clinic two days ago.
I texted him at 21:00 and I know that the day before yesterday he had a “room check” at 22:00 so I presume he would have had one yesterday as well. It is 13:15 on the next day and he hasn’t said anything and I am so scared he is dead. I haven’t gotten out of bed all day. I couldn’t go to work. It is like I’m just waiting for someone from his family to call me and inform me of his passing.
I don’t know what to think. Is it easy for people to kill themselves in a rehab centre? How often would they check up on him? Could they just have taken his phone? I’m so scared. I’m so fucking scared he is dead.
Edit: thank you everyone for weighing in your experiences with rehab. I will try my best to calm down and send his mom a text today, but right now nothing is clicking in my brain. I will try my best.
I'm thinking Pettersson (VAN) is #1, followed by Hischier in 2nd (NJ), and Suzuki 3rd.
Fun to see who was drafted before Suzuki. Nolan Patrick (PHI), Cody Glass (VGK), Gabriel Vilardi (LA) were all drafted before Suzuki and they are arguably not as good as Suzy.
Edit: gotta give credit to Bergevin for picking Suzuki over Glass or Vilardi in the Pacioretty trade!
I'm just asking, because, we'll I didn't even know that a Gen Z centre part was a thing until someone said I part my hair like the Gen Z I am... but I thought I have a side part because its not directly in the centre of my head! My parting is about 2cm off from the centre of my head, to me that's not a centre part, but apparently to others it is a Gen Z centre part!
I'm not taking it seriously, I'm just wondering what people think, when people say centre part do they actually just mean nearer the center than the ears? Lol I even thought I was a Millennial until the Gen Z comment 😅
I wasn't sure what category to put this under, I hope lifestyle is correct- I feel like hairstyle falls under lifestyle, maybe I should have chosen other or demographics.
Hello Reddit, my name is Dr John Troyer and I am the Director of the Centre for Death and Society at the University of Bath. I co-founded the Death Reference Desk website (@DeathRef), the Future Cemetery Project (@FutureCemetery) and I'm a frequent commentator for the BBC on things death and dying. My upcoming book is Technologies of the Human Corpse (published by the MIT Press in 2020). I'll be online from 5-6pm (GMT+1; 12-1pm ET) on Friday 27th September to answer your questions as part of FUTURES - European Researchers' Night 2019.
My teammate's taking pre-orders for another batch of his removable TDC mod over on the facebook group:
https://www.facebook.com/groups/tippmann.airsoft/permalink/1674659589443058/
This might be his final batch so if you want one get in there!
