Archive for the ‘Technology’ Category


Whoops, no head-up display!

September 2, 2017

In an idle moment recently (I don’t get many of those at the moment) I was scrolling through Honest John’s car advice in the Daily Telegraph. I found this one:

This struck a chord with me, because I’ve just bought a pair of Polarised sunglasses to eliminate reflected glare from the inside of my car windscreen – which can be a major problem if the sun’s in front of me and shining directly onto the top of the dashboard.

So, some basic physics. When light is reflected off a surface, most of the light that’s vibrating parallel to the surface is reflected, while most of the light that’s vibrating at other angles is absorbed or diffused. This means the reflected light is mostly vibrating in one direction – this is what “polarised” light means. Reflections from the inside of a car windscreen will be horizontally polarised.

Polarised glasses are designed to eliminate horizontally polarised light because it’s horizontally polarised light which reflects from surfaces such as roads, puddles and lakes, tables and so on. That’s why I bought my new glasses – to eliminate the reflection from the inside of the windscreen when driving towards the sun.

Head-up displays work by projecting the display upwards so that it reflects off the inside of the windscreen – as shown above.

If you wear Polarised glasses, these will cut out any light reflected from the inside of the windscreen, however it got there, so you will not be able to see a head-up display. Reactolite glasses aren’t polarised, they just darken the lenses, so the display will still be visible.

Obvious really, Honest John!


OneDrive – this idiot’s guide

September 11, 2016

Finally, I think I’ve got the idea of Microsoft OneDrive, and it works!

In principle, it’s very straightforward – OneDrive is a cloud drive, the size of which depends on how much you pay for it, but it’s at least 5GB for a free account. This then shows up as a local drive on your PC or Mac which appears in Explorer/Finder and which is synchronised with the cloud version. You can choose which folders to synchronise, or to synchronise all of them (which is the default action).


Seems pretty simple. However there are some wrinkles and it’s taken me a while to work them out.

How many Drives are One?

I don’t have just one OneDrive, I have three: one for my personal account (which is free, and therefore 5GB), one for my business account, with which I pay for Office 365. This gives me a 1TB OneDrive for Business. And finally I have one provided by the company for which I’m doing some work at the moment – I’ll call this my “client” account. I suspect this is also 1TB, but given that it’s a 400+ employee company and it’s using Office 365 (O365) with Exchange in the cloud it may well have even more online space than that.

I use three computers:

  • A MacBook Pro at my client, with O365, apps and OneDrive paid for by my client
  • A MacBook Pro at home, for my own business, with O365, OneDrive and apps paid for by my business
  • A Windows 10 PC at home – my home machine – I login to this machine with my personal Microsoft account, but I’ve installed O365 using one of the five O365 computer licenses available to my business account.

For a while I thought I had a fourth OneDrive. You see Windows 10 comes with a OneDrive app already installed, but unless you log in to one of your OneDrive accounts (at which point the icon shows a green tick on it), it works simply as a local drive, so it looks like it’s an entirely separate OneDrive from the others. However if you login, either when prompted on startup, or by right-clicking the OneDrive icon in the Taskbar (I logged into my personal OneDrive on my Windows 10 PC) then it synchronises with that OneDrive in the cloud, and what appeared to be four OneDrives now become three.

Can I access more than one OneDrive simultaneously?

So, how do I access multiple OneDrives at the same time one one computer? The answer isn’t obvious. Initially I expected I could simply add multiple connections. But it’s not that straightforward.logo_onedrive_business

The easy way is to go into one of the O365 apps (I’ll use Word as an example since it’s easy – Outlook is similar but much trickier to do) then I can add the other OneDrive accounts. I launch Word 2016. On Windows I click on the “File” menu, (no need on a Mac – the first presented view is fine). There’s an “Open” option in the left-hand menu. Click on this, and one of the options offered is “add a place” – and that’s where I connect to my other OneDrive accounts. I can click either OneDrive (to add my personal account) or OneDrive for Business (to add either or both my business or client’s account) – I enter the credentials and there are all the files. So I can open any Word documents that are stored in any of my three OneDrives.

The same works for Excel, PowerPoint, and (with a bit of rooting around in the menus) Outlook 2016. In Outlook you’re looking for the “Office Account” menu option under “File” rather than “Open” which tries to open another email account.

This all works beautifully if the only documents I want to use are Microsoft files. So I can browse all three OneDrives looking for Word documents in Word, or spreadsheets in Excel. But I also use some other apps, specifically Adobe Photoshop, Acrobat and InDesign. All my Adobe documents are stored on my client’s OneDrive for Business. How do I access them from home so I can work on them remotely? Or do I have to give in and use Adobe’s document cloud for my Adobe documents, and Apple’s iCloud for my Apple files? Or do I abandon all of these entirely and use a third-party cloud such as Google or Amazon?

All computers are equal, but PCs are more equal than Macs

The answer is you can do it on a PC, but I haven’t found any way of doing this on a Mac.

On my PC if I go to the Task Bar (conventionally bottom right) and right click on the OneDrive icon, and click “settings” I’m presented with a bunch of tabs. If I click the “Account” tab then there’s an option to “Add an Account” – by selecting this and logging in with another OneDrive set of credentials I can create a second OneDrive on the PC – in my case for my business drive. Et voilá – I can now access all the files on that OneDrive, not just the Microsoft ones.

After working this section out for myself, I found a useful Microsoft Support article that covers this.

Repeat for all other OneDrive accounts and you have access to all your files on a Microsoft OneDrive, whichever it is.

[On a Mac you can download the Microsoft OneDrive App from the App Store. But it appears that you can connect it only to one OneDrive. If I find a way of connecting the MacOS version of OneDrive to more than one OneDrive account, I’ll update the post.]

Update: I’ve worked out how to do this on a Mac. In Finder, right click on the OneDrive icon on the menu bar and click Preferences. Then select the Account tab and click on “Add an Account” – login with your other OneDrive account credentials, and away you go! Simple (well it is when I stop trying to look for a OneDrive menu bar and use Finder instead – doh!)

But the iPad version is the best

Trivial. Download OneDrive for iPad from the App store. Log in with one of your OneDrive/Office365/MicrosoftLive accounts. In the top left corner you’ll see a little icon of a person. Click, select “Add account” and log in with another, and another.

If you’ve already downloaded (and activated) your O365 apps on the iPad then it all just works. Seamlessly. Why isn’t the Mac version this easy?


Sort out passports, UKBA, for the country’s sake

April 28, 2012

The news today is full of reports of 2-hour queues at Heathrow to get passports inspected.

I remember the halcyon days of international travel, back in the 1990s, when getting back into the UK after a trip abroad was a breeze. You stood in line for a few moments with a queue of maybe 10 or 12 people ahead of you. The passport official (now the UK Border Agency of course) took a cursory glance at your passport and you were in.

Back in the halcyon days of travel only getting into the United States was tricky and time consuming. Today getting back into the UK, Read the rest of this entry ?


George Washington’s PC?

May 12, 2011

In early 2007 I decided my Windows XP Home PC had to go. But I hated Vista. I managed to buy one of the very last Acer Aspire desktop PCs running Windows XP Media Edition. I used it until two weeks ago. I always felt it was a good purchase and a good, reliable and decently performing computer.

But it started blue-screening sporadically, complaining about disk and memory errors.

Read the rest of this entry ?


Plus ca change, plus c’est la meme chose

November 13, 2009

Or marketing’s just the same as it always was, despite the technology.

This post is prompted by a blog post from PRGeek (Jon Silk, @prgeek) from a social media conference today. He suggests in a recent tweet “Old media: Stick a celeb in an ad. New media: Stick a celeb on the web. Social media: Stick a celeb on Twitter.”.

My point is that although the techniques of marketing change as technology advances, the objective of marketing remains the same – it’s to attract an unfair share of your audience’s attention.

In the 17th century a row of shops would be competing for passing trade, but the one that paid someone to wear a sandwich board advertising their wares, or paid the town crier to shout about their goods, would be likely to attract more business. Technological advance has introduced print advertising, commercial radio, tv and cinema advertising, billboard advertising, the web and now a plethora of social media: The means change but the objective is the same.

Clearly the audience determines the tactics, so marketing single-dealer platforms to a universe of 45 significant investment banks requires a different set of techniques to marketing anti-virus software to both retail and corporate users (for example), but the objective remains the same. And it always will.

Originally posted on Finextra, on November 12th 2009


The music industry must think again

August 31, 2009

For thousands of years music was a purely live experience. Either you were there to hear it or you weren’t. Excepting a few oddities, the first mechanical device capable of recording and reproducing music was invented by Thomas Edison in 1877.

So the late 19th century saw the beginning of the recorded music industry (history). Is the beginning of the 21st century witnessing its end? I think so. Read the rest of this entry ?


Windows 7: first look – quite impressed

August 11, 2009

I have steered well clear of Windows Vista. I managed to buy one of the last PCs with Windows XP MCE installed – in fact that’s what I’m using now. I’ve advised friends, colleagues, clients and even people in pubs I’ve never met before to stick with XP and not move to Vista. It has a reputation as a memory and processor hog, and Microsoft continued to indulge their corporate passion for moving menu items around just when everyone had worked out where to find them!

So it’ll come as a shock to those of my friends who had put me down as a luddite who was going to stick with XP until hell froze over to find that I’ve downloaded and installed the Windows 7 release candidate (RC). Admittedly not onto my main machine, but onto the spare PC in my office.

Read the rest of this entry ?