Watch your step…

“For your safety; Watch yer step, when exiting the bus”

These are the automated words that anyone who has made use of the LA metro buses will have heard countless times. And it cracks me up every time. Just the way the guy says “Watch your step”. It sounds like a threat, “Watch your step, or else”. Anyway.

I both love and hate the LA Metro. As much as people say the LA Metro “isn’t that great”, it has been a lifesaver for my wife and I. As new arrivals in the city, without a car, the metro can get you within a mile of almost anywhere you want to go. If you have time. ie. If you really need to get there.

It has saved us a lot of walking to the university and back. It has allowed us to go to the beach, visit friends and family, do our shopping and go out in the evenings. Taxi services and Uber/Lyft are very prominent here, but you can’t beat $3.50 for a return ticket anywhere in LA, and there are major discounts available for students.

Metro signs shows 2 buses stopping, but no indication as to when or where they go

Metro signs shows 2 buses stopping, but no indication as to when or where they go

But it takes a long time. Most places we want to go are within an hour (by metro) of where we’re staying, this would be a 20-30min bus trip. We looked at going to the LA Country Fair, but this would take over 2 hours by metro, as opposed to 40min by car. One of the places I’m applying to work is a 1hr30 bus trip, or a half hour drive. Again, if you need to get there you can. You just need time.

Another thing is the reliability of the buses. Unlike European equivalent systems, where at each bus stop there is a full schedule of the bus, what times it will arrive and where it’s going, the bus stops here are merely a sign saying the 37 bus stops here. It doesn’t tell you when, or where the bus goes. Just that if a 37 bus drives past, it will pick you up here. Part of it is understandable, as with LA traffic, it is anyone’s guess when the next bus will arrive. Making use of Google Maps, or other services, you can view an estimated time, but if the bus is running ahead of schedule it won’t necessarily stop and you can get to the stop on time and have to wait for the next bus. There are set stop points along the way.

busstops

German bus timetable displayed at bus stop – Marielle Segarra, WHYY

Buses are scheduled every certain amount of minutes. For peak times, this may be every 6min. So you know you shouldn’t have to wait too long, however we have experienced times when waiting over 10min for a bus, and for whatever reason the bus was delayed, resulting in 3 of the same bus arriving at a stop at the same time. Once on a bus it is usually possible to get a paper copy of the ‘timetable’.

Also, if you’ve ever looked at an LA street map, you’ll see that the roads are pretty much set up in a massive grid, and buses tend to travel straight, very rarely turning off the main road they are on. So if you know where to go, you can just take a series of buses going in the direction you want.

They have an App, and with their website most of the information you require is available. It also seems to be fairly well synced with Google Maps, which we rely on more than anything else really.

So while we will continue to use the metro, a car is definitely on the purchase list for the next few months.

Also I like their campaign artwork.

metroArt

Metro artwork – from Metro Projects

And this is just something else: Click it and Go

Huawei Mediapad T1

I’ve been contemplating buying a tablet for a year or two now. But had mostly decided against it, mainly due to the lack of use it will get. I had previously owned an IPad 2 which I won in competition in 2012. I had sold it several months after winning it as I wasn’t giving it the use I felt it deserved, and as a student heading off overseas I felt the funds could be put to better use.

IMG_20160515_132647

Slots for MicroSD and MicroSIM exposed in top left (tablet’s bottom right)

And I didn’t regret it. Recently however I’ve been travelling more frequently and my future plans appear to contain a lot more travelling too. Specifically flying. I have on several occasions travelled with my laptop. Which is OK. But it’s heavy, bulky and awkward to work on when on the move when you don’t have a desk or somewhere to place it. My phone on the other hand, while being very capable, is not something I’m going to get much work done on.

So for the past few months I’ve been trawling the second hand tablet market. Which in East London is slightly worse than the already poor SA 2nd hand market. Tablets seem to hold their value remarkably well. I’d hoped for an iPad, preferably with a retina display. iPad Air would have been ideal and I was specifically looking for a device with mobile data. The prices however were (for what I was wanting) exorbitant.

3.55mm audio jack, power button and volume rocker

3.55mm audio jack, power button and volume rocker

I tried Android equivalents but they were no cheaper. Eventually resigning my fate to that of a 720p screen. Still in the market I started monitoring specials and deals from the various technology outlets. Eventually settling on a Huawei T1 Mediapad.

And it’s ticked all the boxes. Takealot had it on special and with a significant amount of eBucks I managed to pick it up fairly cheap. Takealot advertised it as a 4Gb model without SD card slot. Research however showed this did not exist, so I ran the risk and ended up with a 16Gb unit that I added a 64gb microSD card to. I ordered a black unit but they delivered a white one. Not the end of the world and I chose to not bother with the return procedure.

charging port at bottom is updside down

charging port at bottom is upside down

It came neatly packaged with earphones I haven’t bothered to use and surprisingly only a 1A charger with separate micro USB cable. Not much else needed. The first thing I noticed when turning it on was the resolution. I didn’t think it would bother me, and I’ve gotten over it with time, but 720p on a 10″ screen in this day and age is a crime. My 3 year old Galaxy S4 has 1080p on a 5″ screen. Tablet still works fine, but low pixel density is noticeable.

The tablet hasn’t give me any trouble really. I’m not a big fan of the EMUI (v3.0) interface and may run a jailbreak at a later stage but will stick it out for now. It gives transparent icons a green background and all apps are on your ‘desktops’. No apps menu. I also prefer hardware interface buttons as opposed to the on-screen ones Huawei use.

Why do icon backgrounds go green?

Why do icon backgrounds go green?

The volume rocker sits directly below the power button which means I regularly turn the screen off instead of changing the volume. Both are located top right which works well. The charger plugs in at the bottom, however goes in upside down. Unusual. Headphone jack located on the top. Right hand side bottom hides the micro SIM and microSD cards. Cameras are nothing to rave about, but I won’t use them for anything more than Skype for which they are adequate.

The 4G works well and the phone allows for voice calls and SMS as well. The tablet runs Android KitKat and besides Google Camera not working, I haven’t experienced any other major problems. At times the tablet will freeze momentarily. This is most noticeable when playing music and doing something else where the music will not play for a short time before continuing. This is noticeable in some other apps too when you push a button and it will freeze for a short time. Although slightly annoying it doesn’t majorly impede the use of the tablet and I’m not sure of the exact cause.

Overall I’ve been happy with the performance of the tablet. I’m by no means a power user and am slowly finding more and more uses for the tablet. Another slight annoyance is the lack of locally available covers for the Media pad. I’ve had to resign to doing an eBay order to get one which will probably still take another month (took 6 weeks in total in the end) to arrive assuming SAPO do their job.IMG_20160515_132852

The touch screen is mostly responsive but can be a bother at times, requiring multiple taps, specifically on smaller targets, to register.

Time goes on and as it does I discover more I like and dislike about the tablet. But I won’t be selling this one any time soon.

Mars Trilogy (timekeeping)

Look, I’ve only read the first book, well 70% of it, I’m still busy with the rest, but I’m sure the concept of time keeping is not going to change. I’ve mostly enjoyed the book (written by Kim Stanley Robinson), although it’s getting a bit long after the excitement of the first quarter. But anyway, timekeeping, it’s ridiculous. Red Mars is a Sci-Fi book based on the starting decades of populating Mars and making it habitable.

It starts focusing on the ‘first 100’, the first 100 people to arrive on Mars. They were all specially selected out of thousands of applicants to go to Mars. They’re mostly scientists and engineers with skills that they can use to develop Mars once they arrive.Screenshot_2016-05-14-18-16-45One of the early concepts introduced in the book is that of timekeeping. Something which, as they’re a bunch of scientists, I’d think would be rather important. Mars has this problem in that a solar day on Mars is marginally longer than a solar day on Earth. On average 39min longer.

This poses a problem when working on Mars, as how do you keep time? Do you have watches run an extra 39min? So after 24h00 is 24h01 up to 24h39? You can do this, in my opinion it’s a better solution than what took place in Red Mars, but it’s not what scientists do. Not the scientists at NASA anyway. No, they just redefined a second. Or rather gave the Mars Second a definition equal to 102.7% of an Earth Second. And it works! It’s good.

It means that any software can continue to operate on Mars, as long as the clocks they are set to work with are setup to a Martian clock. Well the time will work in any case, dates become a bit more complicated. But that’s not the topic of this article.

In the Mars Trilogy, the scientists’ solution in this situation was to run a clock at the same speed as an Earth clock. Then when 24h00 came along it would stop. It would stop for 39min, and then the clock would start again at 00h01. This time when the clocks were not running is referred to as the timeslip. And took on an element of meaning in the book, but egal.

The main reason they chose to do this is because, as opposed to rovers etc., we actually have people living in this timeframe now, people who are used to the length of a second and whose delicate minds don’t need the extra strain of not knowing how long a second is.

I disagree. From a scientific perspective alone, how do you record things taking place in this timeslip? How do computers react, how much extra effort is it to work around this; when it would be much easier to just make the second marginally (imperceptibly?) longer.IMG_20160514_181814I saw a recent video on YouTube where participants were asked to count to a minute in their heads and say stop when they got there, with interesting results. Mainly supporting my opinion that no one’s going to pick-up a 2.7% difference.

But it’s a book, and maybe I shouldn’t take it so seriously, it’s a nice plot device, if in my opinion a complete bogus conclusion to come to for a bunch of scientists.

If you’re interested, you can view a NASA article on the topic of timekeeping on Mars here, goes as far to include things like timezones and dates. Interestingly, the Wikipedia article on Mars timekeeping includes a mention of ‘timekeeping in fiction‘.

I was initially triggered to read the books after hearing in a podcast (I think it was Still Untitled) that a 10 part series was being produced based on the trilogy. According to Wikipedia it has however again been shelved.

Research is time consuming

Eugh. I finished my masters last year. Kind of. I submitted, and it was accepted on condition of a few changes. It was a research and design project, concluded with a dissertation.

I like knowing things. I enjoy reading up and learning new things. I enjoy imparting this knowledge. I don’t enjoy referencing. There are a lot of tools designed to make referencing easy. I write in latex, and made use of a combination of JabRef and Mendeley to aid my referencing. And it helped.

My biggest problem is writing a couple paragraphs, going over it, realising one of my statements may need a reference, and then not finding a nice academic reference for what I wrote. I know what I wrote is correct (well think at least), but to try find a reference for what I said, is difficult. And time consuming. I’ll do searches in Mendeley for keywords, else I start poring through Google Scholar search results. And usually I’ll find something I can use. But my word is it time consuming.

IMG_0845But I guess this is what makes peer-reviewed journals (and referencing) so important. Cause it prevents someone just saying something, and ensures accountability. As much as a pain as it is.

Which I think is a bit why I enjoy writing. Non-scientific articles that is. Opinion pieces, reviews etc. I can just write whatever I want. I can make statements and am not required to reference. I can link for more info if I want, but I’m not required to.

In conclusion: blogs are great.