Scuba Dive Log Sheets
On my recent trip to Jamaica I finally finished all of the pages of my PADI
dive log book. I decided to replace it with one of those fancy nylon logbook
binders, but the insert sheets for them are bizarrely expensive. I found
some free ones online, but they really were not up to par. Anyone who has
ever been diving with me knows I take my logs pretty seriously, so something
had to be done. My solution was to make my own.
I'm happy with the outcome. The resulting design is nice because it's
straightforward, using checkboxes and icons wherever possible, and is both
metric and imperial. It has everything the PADI pages have, and a few
The PDF has been made available on a new section of my site. Hopefully
others find them useful as well.
] | posted @ 03:26 | link
Rant About Ottawa’s LED Street Lighting
The City of Ottawa decided back in 2014 to implement a pilot project to
convert the classic high-pressure sodium vapour street lighting on Carling
Avenue to state of the art LED. All of the usual reasons were given, their
energy efficiency being the main goal. The project went ahead, there weren’t
many complaints, and the pilot was deemed a success.
Fast forward to today, and the city is taking on the conversion to
solid-state lighting all over the city. It’s an expensive project, but the
energy savings is supposed to pay for it within four years. The problem is
with the choice of bulbs they are using for the city-wide project.
Here is some background. The high-pressure sodium vapour bulb, developed
by General Electric in 1964, is a staple of street lighting. The warm 2700K
wide-spectrum glow is easy on the eyes, not blinding to motorists, and also
pleasant to sleep to when the light beams into your bedroom window from
outside. Recent pockets of LED street lighting installations around the city
have been a fair replacement for this technology; the LED’s colour is a
little flatter, a little bluer in temperature (around 3000K), but overall
acceptable as a replacement.
The current project to convert all of the city’s street lighting to LED
is, however, entirely different. The bulbs the city is installing right now
are cool white, probably somewhere around the 5000K temperature. They are
very jarringly white and easy to be blinded by when driving underneath them.
The difference between the old incandescent lighting and the new LEDs is
very stark, especially when seen side by side, as is currently the case on
Fisher Avenue, where they have converted one side of the road:
Note how in the top picture the left side of the street has a pleasantly
warm and inviting feel, while the right side of the street, with its newly
installed lighting, is cold and pale.
The other pictured intersection is Merivale and Meadowlands, which shows
the classic sodium bulbs with the more fitting LED replacements mentioned
above. These are clearly much easier on the eyes.
How did it get to this? Whose ‘bright’ idea was it to use these horribly
harsh bulbs in our street lamps? I sure would like to know why my tax
dollars were spent on substandard lighting. Progress and energy savings are
fine goals, but only if the progress actually results in something better.
] | posted @ 03:22 | link
Jacob Has a Tooth
It seems a little odd posting for the first time about my baby son over
eight months after he was born. This log simply went into stasis, first
being hosted on a server no longer accessible to me, and then effectively
neglected for lack of time.
Nonetheless, Jacob Elliot Suwalski was born on January 28th, 2016, and is
now about eight-and-a-half months old. While we were out today doing a photo
shoot in our colourful autumn surroundings, he became unusually grumpy, and
seemed to be in real physical pain. Teething being a real possibility, a
quick check confirmed that his first tooth had just broken through the gum.
The internet tells me it's his lower left central incisor. He is developing
It's a good thing he is well on his way into solid foods.
] | posted @ 03:54 | link
With the inherent convenience of Facebook, I've managed to ignore the log
for a few years now. It was never my intention, it just sort of went that
way. I think it's time to change that.
The problem with Facebook is that I've never felt it's a great place to
dump my thoughts, where I'm comfortable writing paragraphs on end about a
specific subject. Most people will skip over longs posts in their feeds too
see the cute cat meme below. I have also held back some ideas, because it's
not polite to put something up that some may find offensive, while others
"like." With the Facebook model, I'm broadcasting an idea, placing it in the
feeds of people who may simply be angered by it. Here, on my own server,
anyone reading actually has to seek it out. This, in turn, is possible,
because search engines like Google do index the content, like any other web
page. Throw into the mix recent stories about Facebook and Twitter
censorship, and all in all, posting here seems like a better use of my time.
So, long live the blog.
] | posted @ 03:39 | link