Is There Going To Be Snow On Table Mountain This Week?

UPDATE: Wednesday afternoonhere’s the latest news

OMG! OMG! OMG! Yes! OMG!
Well, that’s what Facebook says anyway.

The thing is, everyone is going bonkers over a single forecast from mountain-forecast.com, which appears to be the ANN7 of weather forecasting websites:

tmnt

As you can see, they’re suggesting a total of 9 cm of snow (those red numbers) on Wednesday and Thursday nights, and they say:

Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Table Mountain.

Te one above is distinctly their best guess for 1087m elevation – which is about as high as Table Mountain is. So there you go.

However, other more reputable sites, such as windguru.cz and weathersa.co.za are merely predicting much coldness and rain for the Mother City.

But before you get all depressed at the prospect of having no snow on Table Mountain again, just like there wasn’t last summer as well, there may actually be a glimmer of hope at the end of the Cableway.

And that’s because even windguru is suggesting that there will be light precipitation over Cape Town on Thursday evening AND they’re saying that it’ll be 0°C at about 1000m elevation as well:

wg

While it is a myth that it actually needs to be 0°C for snow to fall (actually, precipitation generally falls as snow below 2°C) this is certainly cold enough for snow on the summit of Table Mountain to be a possibility this week.

The last snowfall on the mountain was in August 2011.

Break out the skis and the snowshoes. And someone please warn Instagram to get some extra servers on the go.
This could be serious.

When microbiology makes the news

Not just any microbiology news – Naegleria fowleri microbiology news.

Not heard of Naegleria fowleri? Not under its technical name* perhaps, but you will probably recognise its alter ego:

bea

Yes. Naegleria fowleri is the BRAIN-EATING AMOEBA! It’s an amoeba… that eats your brain.
And it’s catchy (the bug, not the name):

bea2

Fascinating. Naegleria doesn’t discriminate. Next it’ll be infecting black people and white people and everything. (You’ve been warned.)

But N.fowleri is behind the times with its gastronomical preferences. Streptococcus pyogenes was making headlines long ago. Don’t recall it? How about if I told you that it was actually called THE DEADLY FLESH EATING BUG?
And – kerching, light bulb moment – suddenly you know.
But did you know that you can save yourself from certain death by being obese? Yes, really.

Then there are our Extended Spectrum Beta-Lactamase Producers and Vancomycin Resistant Enterococci. Too technical again?
These are the “proper terms” for SUPERBUGS that are going to kill us all.

I always smirk when I read these sort of descriptions and headlines, but there is an important point here: putting things into layman’s terms raises awareness. It makes them accessible to the common person. (There is perhaps a case to be made for maybe dumbing them down and sentionalising them a little less though.)

Ain’t nobody going to read an article on Sky News entitled “Patient with Naegleria fowleri cerebral infection remains capable of conversation”.
But stick in a bit of brain-eating and suddenly everyone’s a fan.

Viva microbiology! Viva!

* or its ‘name’ as we microbiologists refer to it. 

Scientists chop up just dead whale on beach in California

Yes, they did.
We’ve had our fair share of whales washed up around here too, but this one was a bit different.

This is only the fourth fin whale to wash ashore in this area since 2010. But what’s really unusual is that the animal was still alive when it reached the beach, giving the scientists — who arrived just after it stopped breathing — the extremely rare opportunity to perform an necropsy on a fresh whale carcass.

Most often, large whales washing ashore have been dead for a while, and can be too decomposed to learn much from. “These large whales, by the time they wash up, they’re already severely debilitated. This is our first live whale,” said Shawn Johnson, director of veterinary science at The Marine Mammal Center.

It turns out that this whale was probably involved in a bit of a hit-and-run with a ship, resulting in something called subcutaneous emphysema. The heart – the size of a small child – and part of the whale’s underside showed signs of hemorrhaging, a possible sign of traumatic injury. A bloody area, about the size of a large trash can lid, covered the whale’s sternum.

Aside from that, says Johnson

“It’s in really great body condition”

Well, apart from being dead, of course.

img_2979

But for all my facetious comments, the link above does give some interesting detail about what the scientific team did and how they did it.
I’m going to try and remember to pop over to the Marine Mammal Center website once they’ve got some results back and have a look at what they found out. For starters, here’s their version of events.

EdTech: iPads in education

Oh, a long post on a niche subject? There’s an idea guaranteed to get you more readers. *cough*

Last week, I went along to a “iPad Information Evening” at my kids’ school. The school has requested that from age 8, each child should have access to (read “own”) an iPad, as they will be integral to the school’s educational journey from the start of 2014.

One of the speakers was Tim Keller, who has been working alongside the school’s deputy headmaster in implementing this programme and he gave a very interesting presentation. I popped onto his blog when I got home and found this, which was (unsurprisingly) very much in keeping with what he had to say:

Let’s imagine that a tablet sits on every child’s desk, and text books have been banished. The tablet is filled to the brim with the best educational content curated by the finest teaching minds in the country. The content isn’t simply paragraphs and images, it’s completely interactive. Don’t understand Pythagoras theorem? Here’s a demonstrative video. A word in Shakespeare’s Macbeth that you don’t understand? Simply highlight it and see the definition. Photosynthesis just not making sense right now? Mark it to read later so you can study it at home. Your entire educational life would live on this tablet, from homework to novels to quizzes.

Photosynthesis has never made sense to me. Never. Extra study time wouldn’t have helped. But we get the idea.

The next day, Tim tweeted and said he’d like to get my thoughts. Since I was going to blog about it anyway, I freely agreed and – much later than planned – here they are.

So back to the evening. Arriving at the school, we were greeted by tea, coffee, a Digicape stand and some of the students demonstrating (with only limited success, to be fair) how they had been using the iPads already being used at the school. Hmm.

Arriving in the school hall, we were greeted by posters full of thought-provoking quotes:

What year are you preparing your children for?

If we teach today as we taught yesterday, we rob our children of tomorrow.

and the somewhat patronising (I thought, anyway):

If you don’t like change, you’re going to like irrelevance even less.

Hmm.

I’ll freely admit that even as an alleged “early adopter”, I was skeptical going into the presentation. I was concerned about several things.
Firstly, why was there suddenly a need for this change in direction?
Secondly, why the iPad? Why not an Android device, since we all know that Android is much better than Apple? (I will only be accepting supportive comments on this point.)
Thirdly, what about the basic skills of reading, ‘riting and ‘rithmatic? When did they suddenly become irrelevant?
And then, the nuts and the bolts: security, insurance, cost, safety etc etc.

Spoiler alert: I came out converted, having had my mind opened. Here’s why.

There were several obvious misconceptions amongst most (all?) the parents present that this was something of a fad, something trendy that the school wanted to be involved in to look cool and progressive. It seemed like something of a kneejerk decision and for such a big decision, that didn’t seem quite right. Then there was the assumption that somehow the iPad was going to be used for everything: replacing books, replacing pens, pencils and paper; replacing teachers, I suppose, at the extreme.

To be fair, the school was partly to blame for this. The email about their plans was sent out during the long winter holidays, which was a bit odd (they are usually very good at asking for the parents’ input) and it didn’t contain much information, save to say that they would like us to buy an iPad for each of our children and that they would be using them in school from the start of 2014. The inter-parental network (I assume the school know that we have one of these behind the scenes, right?) went mad and (of course) everyone thought the worst. It’s human nature to resist change, see? And if you don’t like change… well… yes, exactly.

But then, they couldn’t have possibly told us everything in one email, as the 2½ hour meeting showed. So the parental mob arrived, pitchforks and flaming torches in hand, sat down and listened to what Tim and the other staff had to say.

The first thing that became obvious was that these people knew what they were talking about. One thinks of a science teacher (for example) knowing about science. Which he does, but he also knows about education – how to impart that knowledge of science to students. As the son of two teachers, I knew about this, but I’d forgotten about it. Education and how to educate is what teachers are trained in; the subject they teach is then secondary to this principle.

And then it became very clear that this was in no way a snap decision. It had been two or three years in the making. Research, networking, consultation and more research had gone into this. I didn’t know that. Had I known that I would have been more open to the idea from the start. It was also clear that this was being led by a very dedicated, passionate team. This is good and bad in my mind. I love enthusiasm and drive, but it must be tempered every so often by some realism. Fortunately, I think in this case, it’s balanced very well by the controlling influence of the Headmaster, who while obviously being involved, is also not directly part of the team tasked with working on the programme. Sensible.

The next thing I learnt was that the iPad wasn’t going to become the sole method of teaching. Rather it was just to be a(nother) tool for teachers to use. But the iPad is a “multi-tool” – the technological Leatherman. They demonstrated this, with three teachers showing how they were already using iPads with their classes and the benefits that it was having. They cited the engagement that the kids had with the device (I’ve seen this with my kids and my tablet) and the way that that engagement facilitated learning. The skills that it was teaching them – creativity, collaboration, communication, critical thinking, problem solving and independent research – “skills for the 21st Century” they said. And they clearly stated that it was really not taking over – just that it was a really effective way of getting kids educated.

That interested me, because as far as I know, we, as parents, happily accepted the letterland system as the way our children were going to learn to write. We never questioned the suitability of the set of books our children are learning maths or reading from, nor, if we look at the technology side of things, that they have interactive whiteboards and projectors, rather than chalk and blackboards. We were completely satisfied that the school made the decisions on which tools they felt were best for educating our kids. Of course we were: that’s what we pay them to do.

So why the fight about iPads?

I need to ask my parents – were they consulted before we were shown our first VHS video at school? Or learnt BASIC on Spectrum computers? Was there widespread outrage, fear and panic? Did they think I’d never learn to write? If so, they hid it well.

That extensive research I mentioned earlier had also gone into the choice of device. And yes, Tim does sport an iPhone, so maybe he’s that way inclined, but the reasons given for selecting the iPad were perfectly reasonable. And I could agree with them too. Uniformity is key here and Android probably wouldn’t work in this scenario – too many different tablets with different versions of operating systems and different capabilities. Then the teacher (trained in teaching remember, not in sorting out tablets) spends the lesson trying to sort out tablets and not teaching. It’s not playing to your strengths. It doesn’t work.
Then there’s Apple TV, being installed in all the classrooms ahead of the new school year. What’s on your tablet, suddenly on the big screen, shared with the class – it’s not just very cool, it’s really helpful as well.

All in all, I was very impressed with the whole idea, the thought and effort that had gone into it and the exciting future that awaits our kids. So much so that I had to check myself just to make sure I hadn’t been brainwashed. But there was sound rationale for every decision they’d made and that’s good enough for me.

There are still those nuts and bolts to be ironed out. Or tightened up – whatever it is you need to do with nuts and bolts. How can a child who can easily lose a shoe – a shoe! – at school be expected to look after an iPad? What is going to be their acceptable use policy? How will they protect the students from the nastiness of the internet? (filtered wifi and special child friendly browsers, in case you were wondering.) There is more staff training to be done, network upgrades that still need to be carried out, special lockers to be purchased and decisions on what apps they are going to use. But every (reasonable) question that was asked, was answered, and answered well.

I’m converted. I knew that tablets were powerful, useful devices, but I’d never really considered their specific uses in the education sector. Now I’m aware of that, now that I’ve seen the enthusiasm of the team behind it at my kids’ school and I can see that it’s going to be implemented correctly and sensibly, I’m really excited for them to get started and I’m hoping to see some near immediate benefits.

Watch this space.

How fast is the ISS?

We’ve done International Space Station posts before. Many of them.
There are even photos.

But it’s been a while and so I have grasped the opportunity presented to me by xkcd.com to answer the question: How fast is 8km/s anyway?

8km/s is the speed that the ISS goes – indeed, has to go – in order to continue orbiting the earth. However, because of the unfamiliar units, people find it difficult to visualise exactly how quick it is, especially when shown the serene footage of earth taken by Chris Hadfield and others.

8km/s is equal to 28,800kph or just under 18,000mph. Yes. Go whoosh whoosh.

It’s 10 times faster than a rifle bullet.
Travelling at 8km/s, you could get from Cape Town to Joburg in 2 minutes and 38 seconds. If you wanted to.
Or Cape Town to London in 20 minutes. Pop over for a pint of real beer and some annoying accents.

But the best way of visualising it comes from the what-if crew, with the help of the Proclaimers:

To get a better sense of the pace at which you’re traveling, let’s use the beat of a song to mark the passage of time. Suppose you started playing the 1988 song by The Proclaimers, I’m Gonna Be (500 Miles). That song is about 131.9 beats per minute, so imagine that with every beat of the song, you move forward more than three kilometres.

It would take you about two lines of the chorus to cross the English Channel between London and Paris.

The song’s length leads to an odd coincidence. The interval between the start and the end of I’m Gonna Be is 3 minutes and 30 seconds, and the ISS is moving is 7.66 km/s.
This means that if an astronaut on the ISS listens to I’m Gonna Be, in the time between the first beat of the song and the final lines, they will have traveled just about exactly 1,000 miles.

And that being the case, they’d have every excuse to fall down at my door.