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r_c_a_d

245 karma · joined March 12, 2018

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r_c_a_d··on Self-solving Rubik's Cube
He said the shortest implementation, not the shortest execution. I think he meant that the easiest solver to "code" is to just remember the scramble and reverse it.

You can see from the videos that it is not doing that though. The solution is not the trivial reverse of the scramble.

r_c_a_d··on Whatever Happened to the Semantic Web?
Yes, I think this is the biggest issue. Since many websites are funded by advertising, they do not want people to be able to extract data from their pages, they want people to "visit" the site and view the ads.

Also, rights. People "own" things like sports fixture lists... they don't want you extracting that data without paying to use it.

The semantic web could be perfect technically, but it was never going to apply to content that people were attempting to "monetise"... which seems to be most of the web's content.

r_c_a_d··on Woman Rides Bicycle to 183.9 MPH, a New World Record
When I read this I thought, what is n? You mean pi, right?

Yes, 18.3 inch wheel is what I got. Here in the UK, the "wheel" size includes the tire as well, I think.

I guess if the rim is 17 inch diameter then 18.3 is only a tire width of 0.65, which isn't very fat.

r_c_a_d··on Woman Rides Bicycle to 183.9 MPH, a New World Record
The wheels must have been a little bigger than 17 inches, since (62/12) * (62/12) * 17 = 453.8

Massive gear. I wonder if anyone could get that moving from a standing start. A huge 1km TT rider maybe?

r_c_a_d··on Thousands of scientists publish a paper every five days
Some? Probably most. A project I worked on produced a "here is what we have just started doing" paper in year 1, then a "we have some more results" paper in year 2, and two slightly different "here is what we ended up with" papers in year 3.

But what do you expect? The system rewards publication above everything. And these are intelligent people. Of course they are going to maximise the numbers. Because if they don't, they get fired and replaced by people who will.

After 10 years in industry (publishing patents, not papers) I contacted my PhD adviser and asked what chance he thought I had of getting an academic job. His answer was equivocal, "none".

r_c_a_d··on Dulles Airport Surprises Passengers with Facial-Recognition Boarding
People take bags onboard to avoid fees, yes, but mostly because airlines lose hold luggage (or send it to the wrong place) and even if they don't you have to go and wait for it at the carousel.

The last flight I took, there were too many people taking onbord luggage and mine got taken off me and put in the hold :(

r_c_a_d··on Decentralisation: the next big step for the world wide web
I presume you mean "never the case for many people". As in "most people never left their PC on 24/7". That may well be true.

I used to run a couple of minecraft servers for my kids. Judging by how amazing their friends thought that was... I don't think there were many other people in the town doing that.

On the other hand, I still have a raspberry pi running 24/7 to this day.

r_c_a_d··on Netflix is the latest company to try bypassing Apple’s app store
Why would you be sure of that? As it happens, I have a TV and watch it every day.

In fact, research (in the UK) suggests that people who use phones less are more likely to watch TV than people who use them a lot.

It wasn't my intention to "boast" that I don't use a phone much. The post I responded to was making a point based on the assumption that "we" have our phones on 100% of the time. I was just trying to point out that there are people in that "we" for which that is not true.

r_c_a_d··on What You Need to Know Before Considering a PhD
I am sad to hear that this is still going on. I got my PhD 25 years ago and it was the norm then. Postgrads were used as IT support as well as teaching assistants and anything else going.

At least I knew this when I started. And it motivated me to get finished in 3 years.

Someone did give me the advice in this article before I started. Which was good. I wasn't in it for the money. It was the freedom to work on things that interested me that mattered.

What no-one told me later, when I started a post-doc, was that the chances of getting a full-time academic job were close to zero... now that did feel like 3 years wasted.

r_c_a_d··on Netflix is the latest company to try bypassing Apple’s app store
My phone is on and with me for less than 50% of the time.

Just saying; phones are not as important to everyone as you think.

(yes, I am over 40)

r_c_a_d··on Idempotence: What is it and why should I care?
Does tolower() or toupper() even make sense with general unicode characters? I wouldn't expect it to... but I've never really thought about it before :-)
r_c_a_d··on New evidence challenges the story of the Stanford Prison Experiment
Presumably there is a different "name taker" each time. So if you "cheat" when you are "it" then next time you will get some comeback.
r_c_a_d··on Periodic fasting starves cisplatin‐resistant cancers to death
I'm confused. Do you mean you fast for 12 hours on each of Monday, Wednesday and Friday, totalling 36 hours? Or you fast for 36 hours starting on Monday, Wednesday and Friday... which would be all of Monday and half of Tuesday etc?
r_c_a_d··on WhatsApp sends Cease and Desists for apps that use native Android APIs
But we can stop using their services.
r_c_a_d··on Don't Provide Your References to a Recruiter Until After Your Last Interview
They are parasites because they actively make it hard for people to find jobs adverts directly, by flooding job sites with their own adverts.

In the age of Google it should be relatively easy to search for job ads in a particualr area. But it isn't. Because 99.9% of the search results will be recruitment agencies.

When I search job sites for jobs within 5 miles of my home town, most of the results are actually for jobs in London, which is 30 miles away, because recruiters post ads for those jobs with the "misleading" location knowing that some people from my town will be willing to commute.

r_c_a_d··on Facebook Use Has Been Dropping Since the 2016 Election, According to SimilarWeb
No, it is still there. I use it because I am only on Facebook for one group. By having no "friends" I can look at the group without the clutter and no "friend requests".

And, since the group are moving to a WhatsApp group soon, I wont have to use Facebook at all.

r_c_a_d··on How a Newspaper Dies
The BBC was forced to scale back its website(s) because of complaints by the private sector that it was unfair competition. For example,

https://www.holdthefrontpage.co.uk/2013/news/bbc-is-unfair-c...

They argued that the BBC was using its guaranteed income from the licence fee (originally for just TV and Radio) to crowd out the competition in the UK, by being too good...

r_c_a_d··on The Rubik's Contraption
Or 26 in the quarter turn metric http://www.cube20.org/qtm/ which is probably what matters for a robot, since 180 degree turns take longer than 90 degree turns?
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