A history of the forces that led to the Atlas program from the end of the War to 1954. Covers a wide range of led-up rocket programs, technical advances and political, cold-war and inter-service rivalries. 3/5
A memoir of the author’s life and career from 16 to her mid 20s. Mixture of story, information about meat (including recipes), the butchery trade and meat industry. 3/5
A history of the iPhone and various technologies that went into it. Plus some tours of components and manufacturing. No cooperation from Apple so some big gaps but does okay. 4/5
Lots of examples of where Maths went wrong. From Financial errors and misbuilt bridges to failed game shows. Mix of well-known and some more obscure stories. Well told. 4/5
I’ve been using Keda a little bit at work. Good way to scale on random stuff. At work I’m scaling pods against length of AWS SQS Queues and as a cron. Lots of other options. This talk is a 9 minute intro. A bit hard to read the small font on the screen of this talk.
Outlines some new stuff in scaling in 1.18 and 1.19.
They also have a fork of the Cluster Autoscaler (although some of what it seems to duplicate Amazon Fleets).
Have up to 1000 nodes in some of their clusters. Have to play with address space per nodes, also scale their control plan nodes vertically (control plan autoscaler).
Use Virtical Pod autoscaler especially for things like prometheus that varies by the size of the cluster. Have had problems with it scaling down too fast. They have some of their own custom changes in a fork
Could increase addon manager polltime but then addons would take a while to show up.
But in Minikube not a problem cause minikube knows when new addons added so can run the addon manager directly rather than it polling.
32% reduction in overhead from turning off addon polling
Also reduced coredns number to one.
pprof – go tool
kube-apiserver pprof data
Spending lots of times dealing with incoming requests
Lots of requests from kube-controller-manager and kube-scheduler around leader-election
But Minikube is only running one of each. No need to elect a leader!
Flag to turn both off –leader-elect=false
18% reduction from reducing coredns to 1 and turning leader election off.
Back to looking at etcd overhead with pprof
writeFrameAsync in http calls
Theory could increase –proxy-refresh-interval from 30s up to 120s. Good value at 70s but unsure what behavior was. Asked and didn’t appear to be a big problem.
The author was a senior manager in the booster team who cooperated more fully with the investigation than NASA or his company’s bosses would have preferred. Mostly accounts of meetings, hearings & coverups with plenty of technical details. 3/5
A quick tour though the rise of various financial concepts like insurance, bonds, stock markets, bubbles, etc. Nice quick intro and some well told stories. 4/5
An authorized book from the Queen’s dresser. Some interesting stories. Behind-the-scenes on typical days and regular events Okay even without photos. 3/5
A writer takes up competitive sailing after a gap of 15 years, training on winter ponds in prep for the Nationals. A nice read. 3/5
Spitfire Pilot by Flight-Lieutentant David M. Crook, DFC
An account of the Author’s experiences as a pilot during the Battle of Britain. Covering air-combat, missions, loss of friends/colleagues and off-duty life. 4/5
A Chapter on each species. Usually information about incidents they were involved in (see “Tigers”) or the growth, decline, comeback of their population & habit. 3/5
The family move into their store building in town for the winter. Blizzard after blizzard sweeps through the town over the next few months and starvation or freezing threatens. 3/5
I got this email from Linkedin this morning. It is telling me that they are going to change my location from “Auckland, New Zealand” to “Auckland, Auckland, New Zealand“.
Email from Linkedin on 30 August 2020
Since “Auckland, Auckland, New Zealand” sounds stupid to New Zealanders (Auckland is pretty much a big city with a single job market and is not a state or similar) I clicked on the link and opened the application to stick with what I currently have
Except the problem is that the pulldown doesn’t offer many any other locations
The only way to change the location is to click “use Current Location” and then allow Linkedin to access my device’s location.
By default, the location on your profile will be suggested based on the postal code you provided in the past, either when you set up your profile or last edited your location. However, you can manually update the location on your LinkedIn profile to display a different location.
but it appears the manual method is disabled. I am guessing they have a fixed list of locations in my postcode and this can’t be changed.
So it appears that my options are to accept Linkedin’s crappy name for my location (Other NZers have posted problems with their location naming) or to allow Linkedin to spy on my location and it’ll probably still assign the same dumb name.
The basically appears to be a way for Linkedin to push user to enable location tracking. While at the same time they get to force their own ideas on how New Zealand locations work on users.
At the start of 2011 Uber was in one city (San Francisco). Just 3 years later it was in hundreds of cities worldwide including Auckland and Wellington. Dockless Electric Scooters took only a year from their first launch to reach New Zealand. In both cases the quick rollout in cities left the public, competitors and regulators scrambling to adapt.
Delivery Robots could be the next major wave to rollout worldwide and disrupt existing industries. Like driverless cars these are being worked on by several companies but unlike driverless cars they are delivering real packages for real users in several cities already.
Note: I plan to cover other aspects of Sidewalk Delivery Robots including their impact of society in a followup article.
What are Delivery Robots?
Delivery Robots are driverless vehicles/drones that cover the last mile. They are loaded with a cargo and then will go to a final destination where they are unloaded by the customer.
Indoor Robots are designed to operate within a building. An example of these is The Keenon Peanut.These deliver items to guests in hotels or restaurants . They allow delivery companies to leave food and other items with the robot at the entrance/lobby of a building rather than going all the way to a customer’s room or apartment.
The next size up are sidewalk delivery robots which I’ll be concentrating on in the article. Best known of these is Starship Technologies but there is also Kiwi and Amazon Scout. These are designed to drive at slow speeds on the footpaths rather than mix with cars and other vehicles on the road. They cross roads at standard crossings.
KiwiBotStarship Delivery RobotAmazon Scout
Finally some companies are rolling out Car sized Delivery Robots designed to drive on roads and mix with normal vehicles. The REV-1 from Reflection AI is at the smaller end with company videos showing it using both car and bike lanes. Larger is the Small-Car sized Nuro.
REV-1Nuro
Sidewalk Delivery Robots
I’ll concentrate most on Sidewalk Delivery Robots in this article because I believe they are the most mature and likeliest to have an effect on society in the short term (next 2-10 years).
In-building bots are a fairly niche product that most people won’t interact with regularly.
Flying Drones are close to working but it it seems to be some time before they can function safely in a built-up environment and autonomously. Cargo capacity is currently limited in most models and larger units will bring new problems.
Car (or motorbike) sized bots have the same problems as driverless cars. They have to drive fast and be fully autonomous in all sorts of road conditions. No time to ask for human help, a vehicle on the road will at best block traffic or at potentially be involved in an accident. These stringent requirements mean widespread deployment is probably at least 10 years away.
Sidewalk bots are much further along in their evolution and they have simpler problems to solve.
A small vehicle that can carry a takeaway or small grocery order is buildable using today’s technology and not too expensive.
Footpaths exist most places they need to go.
Walking pace ( up to 6km/h ) is fast enough to be good enough even for hot food.
Ubiquitous wireless connectivity enables the robots to be controlled remotely if they cannot handle a situation automatically.
Everything unfolds slower on the sidewalk. If a sidewalk bot encounters a problem it can just slow to a stop and wait for remote help. If that process takes 20 seconds then it is usually no problem.
Starship Technologies
Starship are the best known vendor and most advanced vendor in the sector. They launched in 2015 and have a good publicity team.
The push into college campuses was unluckily timed with many being closed in 2020 due to Covid-19. Starship has increased delivery areas outside of campus in some places to try and compensate. It has also seen a doubling of demand in Milton Keynes. However the company has laid of some workers in March 2020.
Kiwibot
Kiwibot
Kiwibot is one of the few other companies that has gone beyond the prototype stage to servicing actual customers. It is some way behind Starship with the robots being less autonomous and needing more onsite helpers.
Based in Columbia with a major deployment in Berkley, California around the UCB campus area
Robots cost $US 3,500 each
Smaller than Starship with just 1 cubic foot of capacity. Range and speed reportedly lower
Guided by remote control using way-points by operators in Medellín, Colombia. Each operator can control up to 3 bots.
In July 2020 announced rollouts in Atlanta, Georgia and Franklin, Tennessee, but still “initially be accompanied by an Amazon Scout Ambassador”.
Other Companies
There are several other companies also working on Sidewalk Delivery Robots. The most advanced are Restaurant Delivery Company Postmates (now owned by Uber) has their own robot called Serve which is in early testing. Video of it on the street.
Several other companies have also announced projects. None appear to be near rolling out to live customers though.
Business Model and Markets
At present Starship and Kiwi are mainly targeting the restaurant deliver market against established players such as Uber Eats. Reasons for going for this market include
Established market, not something new
Short distances and small cargo
Customers unload produce quickly product so no waiting around
Charges by existing players quite high. Ballpark costs of $5 to the customer (plus a tip in some countries) and the restaurant also being charged 30% of the bill
Even with the high charges drivers end up making only around minimum wage.
The current business model is only just working. While customers find it convenient and the delivery cost reasonable, restaurants and drivers are struggling to make money.
Starship and Amazon are also targeting the general delivery market. This requires higher capacity and also customers may not be home when the vehicle arrives. However it may be the case that if vehicles are cheap enough they could just wait till the customer gets home.
Still more to cover
This article as just a quick introduction of the Sidewalk Delivery Robots out there. I hope to do a later post covering more including what the technology will mean for the delivery industry and for other sidewalk users as well as society in general.
Mainly following Paul Tibbets and the 509th Composite Group plus some on the ground in Hiroshima. Has “minute-by-minute coverage of the critical periods”. 3/5
Alternate timeline SF. A meteorite hits the US. The Space program accelerates so humans can escape earth. Our hero faces lots of sexism & other barriers to becoming an astronaut. 3/5
The family move to De Smet, South Dakota. The railroad and then a town is built about them over a year. A good entry in the series, some gripping passages. 3/5
Based on 142 interviews. A lot of summaries of findings with quotes for interviewees and people’s blogs. Last chapter has some policy push but a little lights 3/5
Just a a 6 hour long quick spin though history. First half suffers a bit with lists of Kings although there is a bit more colour later in. Okay prep for something meatier 3/5
A bit of a mix. It covers the legacy of Apollo but the best bits are chapters on the Computers, Politics and other behind the scenes things. A compliment to astronaut and mission orientated books. 4/5
A very tightly written thriller about a fictional 1963 plot to assassinate Frnch President Charles de Gaulle. Fast moving, detailed and captivating 5/5
Memoir from the first officer in charge of the US Navy’s Top Gun school. A mix of his life & career, the school and US Navy air history (especially during Vietnam). Excellent 4/5
75% about Big-wave Tow-Surfers with chapters on Scientists and Shipping industry people mixed in. Competent but author’s heart seemed mostly in the surfing. 3/5
I did a big twitter thread of the YouTube channels I am following. Below is a copy of the tweets. They are a quick description of the channel and a link to a sample video.
Lots of pop-Science and TV/Movie analysis channels plus a few on other topics.
I should mention that I watch the majority of YouTube videos at speed 1.5x since they usually speak quite slowly. To Speed up videos click on the settings “cog” and then select “Playback Speed” . YouTube lets you go up to 2x
Chris Stuckmann reviews movies. During normal times he does a couple per week. Mostly currently releases with some old ones. His reviews are low-spoiler although sometimes he’ll do an extra “Spoiler Review”. Usually around 6 minutes long. Star Wars: The Rise of Skywalker – Movie Review
Wendover Productions does explainer videos. Air & Sea travel are quite common topics. Usually a bit better researched than some of the other channels and a little longer at around 12 minutes. Around 1 video per week. The Logistics of the US Census
City Beautiful is a channel about cities and City planning. 1-2 videos per month. Usually around 10 minutes. Pitched for the amateur city and planning enthusiast Where did the rules of the road come from?
PBS Eons does videos about the history of life on Earth. Lots of Dinosaurs, early humans and the like. Run and advised by experts so info is great quality. Links to refs! Accessible but dives into the detail. Around 1 video/week. About 10 minutes each. How the Egg Came First
Pitch Meetings are a writer pitching a real (usually recent) movie or show to a studio exec. Both a played by Ryan George. Very funny. Part of the Screen Rant channel but I don’t watch their other stuff Playlist Netflix’s Tiger King Pitch Meeting
MrMobile [Michael Fisher] reviews Phones, Laptops, Smart Watches & other tech gadgets. Usually about one video/week. I like the descriptive style and good production values, Not too much spec flooding. A Stunning Smartwatch With A Familiar Failing – New Moto 360 Review
Verge Science does professional level stories about a range of Science topics. They usually are out in the field with Engineers and scientists. Why urban coyote sightings are on the rise
Alt Shift X do detailed explainer videos about Books & TV Shows like Game of Thrones, Watchmen & Westworld. Huge amounts of detail and a great style with a wall of pictures. Weekly videos when shows are on plus subscriber extras. Watchmen Explained (original comic)
The B1M talks about building and construction projects. Many videos are done with cooperation of the architects or building companies so a bit fluffy at times. But good production values and interesting topics. The World’s Tallest Modular Hotel
CineFix doesn’t a variety of Movie-related videos. Over the last year only putting about one or two per month and mostly high quality. A few years ago they were at higher volume and had more throw-aways Jojo Rabbit – What’s the Difference?
Marques Brownlee (MKBHD) does tech reviews. Mainly phones but also other gear and the odd special. His videos are extremely high quality and well researched. Averaging 2 videos per week. Samsung Galaxy S20 Ultra Review: Attack of the Numbers!
How it Should have Ended does cartoons of funny alternative endings for movies. Plus some other long running series. Usually only a few minutes long. Avengers Endgame Alternate HISHE
Screen Junkies does stuff about movies. I mostly watch their “Honest Trailers” but they sometimes do ‘Serious Questions” which are good too. Honest Trailers | Terminator: Dark Fate
Half as Interesting is an offshoot of Wendover Productions (see above). It does shorter 3-5 minutes weekly videos on a quick amusing fact or happening (that doesn’t justify a longer video) United Airlines’ Men-Only Flights
Red Team Review is another movie and TV review channel. I was mostly watching them when Game of Thrones was on and since then they have had a bit less content. They are making some Game of Thrones videos narrated by the TV actors though Game of Thrones Histories & Lore – The Rains of Castamere
Signum University do online classes about Fantasy (especially Tolkien) and related literature. Their channel features their classes and related videos. I mainly follow “Exploring The Lord of the Rings”. Often sounds better at 2x or 3x speed. A Wizard of Earthsea: Session 01 – Mageborn
The Nerdwriter does approx monthly videos. Usually about a specific type of art, a painting or film making technique. Very high quality How Walter Murch Worldized Film Sound
Real Life Lore does infotainment videos. “Answers to questions that you’ve never asked. Mostly over topics like history, geography, economics and science”. This Was the World’s Most Dangerous Amusement Park
Real Engineering is a bit more technical than the average popsci channel. The especially like doing videos covering flight dynamics. but they cover lots of other topics How The Ford Model T Took Over The World
CGP Grey makes high quality explainer videos. Around one every month. High quality and usually with lots of animation. The Trouble With Tumbleweed
Lessons from the Screenplay are “videos that analyze movie scripts to examine exactly how and why they are so good at telling their stories” Casino Royale — How Action Reveals Character
Lindsay Ellis does videos mostly about pop culture, Usually movies. These days she only does a few a year but they are usually 20+ minutes. The Hobbit: A Long-Expected Autopsy (Part 1/2)
