Show HN: Free to play old-school browser MMORPG https://ift.tt/3j6Ya09

Show HN: Free to play old-school browser MMORPG https://ift.tt/3j3bUJg August 22, 2021 at 12:51PM

Show HN: A https://ift.tt/3D5qQyp

Show HN: A https://typeitjs.com August 22, 2021 at 07:18AM

Show HN: A toy compiler of a Scala subset https://ift.tt/3sDysmZ

Show HN: A toy compiler of a Scala subset https://ift.tt/3sBO4aE August 22, 2021 at 03:34AM

Show HN: Version 8.0 of SixArm Unix shell functions https://ift.tt/3gFNt39

Show HN: Version 8.0 of SixArm Unix shell functions https://ift.tt/384mxFw August 21, 2021 at 03:29PM

Show HN: A Pure SQL Raytracer https://ift.tt/3mlHN1G

Show HN: A Pure SQL Raytracer https://ift.tt/37ZYJCw August 21, 2021 at 10:36PM

Show HN: edotool (X11/Wayland) https://ift.tt/3gk6Eis

Show HN: edotool (X11/Wayland) Howdy folks! edotool: Simulate keystrokes. X11 and Wayland supported - Please see: https://ift.tt/3mqOQGn or https://ift.tt/3y4zpWr Cheers! August 21, 2021 at 09:53PM

Show HN: Facata – Connect to SQL Databases from Python https://ift.tt/3gFh8th

Show HN: Facata – Connect to SQL Databases from Python https://ift.tt/3Dah8uW August 21, 2021 at 06:47PM

Show HN: DocOne – A Search Engine for Healthcare https://ift.tt/3j5iChX

Show HN: DocOne – A Search Engine for Healthcare https://docone.io August 21, 2021 at 10:27AM

Show HN: Browser extension to (fuzzy) search bookmarks, history and open tabs https://ift.tt/3z9aJxr

Show HN: Browser extension to (fuzzy) search bookmarks, history and open tabs https://ift.tt/3AZDpcW August 21, 2021 at 07:34AM

Show HN: Build a Lisp in Swift https://ift.tt/3j2jWlF

Show HN: Build a Lisp in Swift https://ift.tt/3rYIq25 August 21, 2021 at 02:26AM

Then and Now: Keeping the Cable Cars on the Move

Then and Now: Keeping the Cable Cars on the Move
By Jeremy Menzies

When Andrew Hallidie’s first cable car climbed Nob Hill on Clay Street in August 1873, the cars were a brand-new technology to replace the horse-drawn streetcars used at the time. Little did he know that 148 years later, cable cars would still be scaling the steep slopes of Nob Hill.

Many of the methods used to maintain and operate the cars to this day harken back to the golden era of cable cars in the late 1800s. As we ramp up for the return of revenue service on San Francisco’s beloved cable cars, check out the images below for a look at just some of the behind-the-scenes work keeping the system running, both then and now.

Keeping up the Cars
Maintaining the cars on a regular basis is vital to keeping them safe, operable and looking good for the tens of thousands of people who ride them. At the Cable Car Division shops, mechanics, carpenters and painters perform routine maintenance, make repairs and brighten up worn out paint to keep the cars in shape.

Then: Two painters work on California Street Cable Car 15 in the paint shop at California Cable headquarters in 1952 (once located on the SW corner of Hyde and California Streets).

Now: A painter lays down masking tape to paint striping on the side of Powell St. Cable Car 22, which was rebuilt in 2017.

Minding the Cable
Without cables and the machinery used to move them, there would be no cable cars. Today the age-old work of cable splicing, a method of attaching one end of the cable to the other, is done by hand, the same as it has been done for over 100 years. Another critical job is maintaining the winding machinery used to move the cable and cars through the streets.

Then: cable splicing in 1947 involved hand tools, skill and a bit of brute force, much the same as 10, 20, or 50 years earlier. 

Now: This 2014 shot looks about the same as its 1947 counterpart, minus the hats and cigarettes!

Major Overhauls
When a car is too old or damaged to operate safely, it is rebuilt by teams of skilled craftspeople. The metalworkers in our Special Machine shop are responsible for building new metal parts used throughout the vehicle – from heavy wheel and suspension assemblies to decorative parts of the passenger grab bars. Carpenters rebuild the entire car, while painters and mechanics finish getting the car looking its best and ready to roll.

Then: Two mechanics stop for a photo in 1958 with an overhauled cable car truck in the heavy repair shops once located on Ocean and San Jose avenues (present day location of Muni’s Green Division).

Now: A welder cuts up an old cable car truck using a torch at the Special Machine Shop, which handles building brand new trucks from scratch. In addition to using traditional methods, the shop is truly a 21st century operation with computer-controlled machines that can make parts from technical drawings that were painstakingly uploaded into modern machining software.

Tracks to Run On
Today, as throughout the past 100+ years, track crews are responsible for keeping the track system up and running. Unlike regular rails used in our streetcar and subway systems, the cable car rails include complex pieces to not only guide the cars but also move the cable up and over hills and around bends.

Then: A track crew works to replace a depression beam and bumper bar on Powell Street in this 1971 photo.

Now: In this 2019 shot, a track crew replaces an old depression beam just blocks from the 1971 photo. Depression beams are used to push against the cable to keep it from hitting the channel in which it runs wherever the road dips.

The maintenance and restoration efforts of SFMTA's cable car barn staff speak to their unparalleled background skills and their mastery of age-old trades that help keep our very own national landmark on the move. 

Catch a ride on the cable cars for free throughout the month of August and look for them to return to revenue service in September. 
 

Published August 21, 2021 at 01:27AM
https://ift.tt/3y2WvN9

Show HN: Duedilly.io – Accuracy of Reddit Trading Ideas https://ift.tt/3sBHZen

Show HN: Duedilly.io – Accuracy of Reddit Trading Ideas http://duedilly.io/ August 20, 2021 at 01:06PM

Show HN: FreeBoardGames.org – FOSS platform for publishing boardgame.io games https://ift.tt/2W92N0z

Show HN: FreeBoardGames.org – FOSS platform for publishing boardgame.io games Hello HN, I have started FBG some years ago when I moved to the Bay Area and could not find a simple, cross-platform, no-registration way to play board games with my friends back in my home country. I also wanted to make it simple to create multiplayer board games online for developers in their free time. Shortly after, I found out about boardgame.io with similar goals and decided to join forces with them. It became the engine of our board games, and we focused on publishing/serving them. To be fair with everyone and inspired by Wikipedia, we made the project a non-profit with GPLv3 Affero license. Since then, the project has gotten many amazing contributors that developed really cool board games, added translations, helped with infra, etc (see https://ift.tt/3glVHNr ...). My focus has been on the infrastructure (scaling, adding text chat, etc). During the pandemic, we saw a large 30x increase in usage, and it also became more useful for me, as I started using it at work for (now virtual) fun team meeting events. Please check it out and give any feedback! August 20, 2021 at 08:14PM

Show HN: Cassyni – Relaunching Academic Seminars https://ift.tt/3y5b3fh

Show HN: Cassyni – Relaunching Academic Seminars Hi, this is Andrew (arhpreston) and Ben (benjyk) from Cassyni ( https://cassyni.com ). We both completed PhDs in physics before going on to found Publons and Kopernio, companies that were acquired by -- and became a part of -- Web of Science, a product researchers on HN may be familiar with. It is well known how important academic seminars are for networking, promoting your research, and keeping up with latest developments. But the scale is under-appreciated: by our estimates more than 1 million academic seminars were happening every year. And then Covid came along... As a result many seminar series are now online and recorded using solutions that cobble together tools like Zoom, Google Sites and Sheets. This all more or less works but is painful and time consuming to operate. Our co-founders, researchers at Imperial College London and Texas A&M, experienced this firsthand. With their input we set out to build a tool to take the pain out of organising a seminar series. The idea is that in just a few minutes you can set up a professional looking seminar series and begin inviting researchers. We take care of the tedious process of setting up an online presence and working with speakers to find a time slot that works for them, collect their bio, abstract, promotion and more. We’ve been operating in beta for several months now. You can see some of the seminar series that are up and running on our homepage. These range from your standard departmental series (ABI Tuesday Seminars: https://ift.tt/3mi7RL0 ), to a series about a specific tool for scientific simulations (PyFR: https://ift.tt/3zbj2ZS ) through to a journal that brings in authors to talk about influential papers (J. Comp Phys.: https://ift.tt/2UDmk98 ). Note that you can click on the archive tab of each series to watch recordings of previous seminars. As you can see, these are not just standard departmental seminars; the shift to online has removed geographics barriers, enabling different types of seminar series to develop. What they all have in common is that they are helping communities to form around different kinds of research topics, and they all give you information and nuance you wouldn’t find by reading the related publications alone. On the attendee side, we’ve done some nifty work to integrate with Zoom so the live experience is better (instead of a name in a Zoom meeting you can see the profile of people in the room and participate in a live Q&A: https://ift.tt/3ml5G9t ). In the longer term we think Cassyni can help to make seminars and their recordings a searchable (e.g., check out the slides we’ve automatically extracted from the video and search for “flux” here: https://ift.tt/3D5RkA3 ) and citable (as you can see from the previous link public seminars on Cassyni get a DOI and are indexed in CrossRef) part of the sphere of human knowledge -- a complement to the published literature. We thought we’d share what we’ve built with HN in the hope of getting some feedback about what we can improve. If you are a researcher please do take a look and let us know what you think. And if you’re interested in setting up a seminar series drop us a line (help@cassyni.com) to let us know where you came from and we’ll organise an HN discount for you. August 20, 2021 at 05:03PM

Show HN: Yay||Nay – The Peak of Automation: Automating saying yes/no https://ift.tt/3D2xAwV

Show HN: Yay||Nay – The Peak of Automation: Automating saying yes/no https://yay.ornay.net/ August 20, 2021 at 07:37AM

Show HN: I made earrings that work like earphones https://ift.tt/3j3z6H6

Show HN: I made earrings that work like earphones https://ift.tt/3miId8U August 20, 2021 at 01:59AM

Show HN: Tangram – Train a model from a CSV file on the command line https://ift.tt/3karMJ7

Show HN: Tangram – Train a model from a CSV file on the command line https://www.tangram.dev August 18, 2021 at 04:03PM

Show HN: Minymon – cute and helpful pets for your website https://ift.tt/2XAMQkp

Show HN: Minymon – cute and helpful pets for your website https://ift.tt/3B1hGBr August 19, 2021 at 07:53PM

Show HN: Made a service that can text you as soon as the PS5 is back in stock https://ift.tt/3y1h3pm

Show HN: Made a service that can text you as soon as the PS5 is back in stock https://ift.tt/3iZ3q5H August 19, 2021 at 07:09PM

Show HN: Canonic: Visual Development Platform https://ift.tt/3kbrhP2

Show HN: Canonic: Visual Development Platform https://ift.tt/37Wt6tt August 19, 2021 at 06:33PM

Show HN: Gossip: short form social audio https://ift.tt/2UC88xa

Show HN: Gossip: short form social audio https://ift.tt/2Wc6frw August 19, 2021 at 12:44PM

Thanks for Keeping Your Mask On

Thanks for Keeping Your Mask On
By Jonathan Streeter

Throughout the COVID-19 pandemic, Muni customers have consistently demonstrated a strong willingness to comply with health safety mandates, in particular with wearing masks.  As a reminder, the Federal requirement to wear a mask while riding, boarding and waiting for Muni vehicles remains in place, and has been extended until January 18, 2022.

Everyone over the age of two is required to wear a mask, regardless of vaccination status. We are grateful for the cooperation of everyone involved, as it lowers the risks associated with the spread of the virus, not only for Muni customers, but also for vehicle operators, maintenance crews and others. 

If you haven’t already received a vaccination, we encourage you to explore the resources available in San Francisco as well as in other locations.

Thanks for helping to keep your transportation system as safe as we can for everyone.

Published August 19, 2021 at 06:13PM
https://ift.tt/2W00KfL

Show HN: SurplusCI – runners for your CI pipelines. More builds, smaller bills https://ift.tt/3CYTBNl

Show HN: SurplusCI – runners for your CI pipelines. More builds, smaller bills https://surplusci.com August 19, 2021 at 04:03PM

Show HN: Video conference from 6ft away using your hands or phone to interact https://ift.tt/2XGCZty

Show HN: Video conference from 6ft away using your hands or phone to interact https://ift.tt/3z2yKWX August 18, 2021 at 05:49PM

Show HN: ETSD – Transmit sensitive data encrypted across your organization https://ift.tt/3k66NHu

Show HN: ETSD – Transmit sensitive data encrypted across your organization https://ift.tt/3z32B1u August 18, 2021 at 12:56PM