Thursday, 15 July 2010

Summertime and Newfoundland

After 2 weeks vacationing out east with my family, I guess I've stayed on vacation to some degree. This is not necessarily a bad thing--I've been enjoying the kids and the summer. But it means that I haven't been keeping up with posts!                                                                                                                                    
I am a person who is drawn to natural places. Places I loved as a child have been destroyed, and I am dismayed when I hear some speak of soccer fields and golf courses as "green spaces" (green in colour maybe, but that's about it!). Places of wild beauty, like Temagami and Clayoquot Sound (and most of Vancouver Island that still hasn't been raped and pillaged) own huge chunks of my heart.
This year my family and I went out east and I met: The Rock.
Newfoundland spoke to me. The land is dominant in a way that took me by surprise the moment we drove off the ferry. I suddenly understood why the Newfoundlanders I have known are the way they are--strong, tough, kind, resilient, non-judgmental, warm and caring. The bleakness of the tuckamore sweeping out to wind-scraped meadows of caribou moss and wildflowers--strong, tough, beautiful and nurturing--shows just how much a land can shape its people. It is a place devoid of material excesses. You won't find a Tim Horton's or McDonald's every few kilometres (except in Cornerbrook or St. John's perhaps). You're more likely to be invited into someone's home for tea. It seems like Newfoundlanders would prefer small villages to towns or cities. Historically this has led to many "resettlement" plans, but the small villages (sometimes less that 100 people, not often more than 600) seem to have a staying power that defies conventional economics.

So often, in my semi-urban existence in southern Ontario, the land becomes something to cross, build upon or manipulate as if it were put there purely for human convenience. From where I sit in my comfy house with A/C and all modern conveniences, it appears to be the people who shape the land.

Don't get me wrong--the ancient white pine forests that once adorned NFLD are long gone, and the fisheries may never recover as the larger fisheries continue to break laws, cross boundaries and fish in completely unsustainable ways. Offshore drilling remains a constant environmental threat.


But there is a resiliency there, perhaps borne of the wind and climate of the place, maybe from as far back as the massive geological collisions and retractions that formed the island, that speaks of a land not easily tamed.

In NFLD, the land still speaks, and it calls to me.

Wednesday, 7 July 2010

Weird Musings About Time

In a much earlier post, I talked about my relationship with science. If you happened to have read that, you will know that I am not a scientist. I am interested in science, but don't really speak the language or have any formal training, and as such, my musings are pretty much for my own entertainment. This usually comes at times when I am overtired and cannot sleep, so my thoughts are not usually very coherent!

I once read a piece--I think it may have been written by Robert Fulghum--in which the author explains that whenever he meets a new person, he asks them if they know the answer to the meaning of life (assuming 42 isn't it). He explains that while it may seem odd, he'd feel pretty silly if he met someone who knew the answer but he had missed the chance to find out because he neglected to ask. After all, the stupidest question is the one left unasked.

In this spirit, I am going to ask/speculate here about a few things I've wondered about regarding the physics of time.

Perhaps you will be able to clear these up for me and allow me to gain a good night's rest.

1. What happens to time as temperature falls towards zero degrees Kelvin? At zero, does time actually stop? This goes along with another question, which is, how can we accurately measure time? An atomic clock is the current best accuracy we have, but it would seem that the fall of temperature would distort the measurement when taken to this extreme. Any thoughts on this?

2. This one is from my 12 year old son from a conversation we had tonight at dinner (yeah, we talk about this sort of stuff over dinner!): what if the explosion of the big bang was not spherical, but rather cone-shaped or bi-conical (like lighthouse lights)? What might that mean in regards to time in our universe? Could it predict a parallel universe? Could our lack of symmetry (particle and anti-particle imbalance that allowed our universe to form without particles immediately canceling out) be counterbalanced by a universe on the "other side"? How about 3 cones, or 4?

3. If we could step outside our universe to view it, what would it look like? Would time not exist there, and if so, how would that affect our view? Would the universe become invisible as light takes time to travel? Can there be light outside of time? If we could see it, would we see all of past and present for the universe happening at once? Or would it "appear" as a giant black hole? Could we detect anything at all from it?

I'd love to hear your thoughts on any or all of these, or any other similar "imponderable wonderings" you yourself may be having.

Monday, 5 July 2010

Power Pages

Coming soon to a website near you: the power pages full of energy-related activities and experiments.

A sample of some of the activities I'm working on:
- make your own solar still, solar cooker and solar dehydrator
- explore the effects of high and low air pressure
- make a glow in the dark geyser
- explore the role of colour and light in heat absorption
- use edible insulation to bake ice cream (this is already on the site)
- make hot ice and use household items to create heat as well as cold
- explore potential and kinetic energy with marbles and your own Rube Goldberg machine
- make your own rubber-band powered vehicle
- make your own balloon-powered vehicle

There will be lots more there too. This should be up and running by mid July.
Can't wait? Here's a chemistry quickie:

Easy Endothermic Reaction
Materials:
citric acid (sold to keep cut fruit from browning and also in craft stores for making bath bombs--The Bulk Barn sells it in containers that look like spice bottles)
water (warm but not hot)
baking soda
a spoon or stirring rod
a heavy glass container or mug
a thermometer (one with a probe-like end works best)

Method:
Dissolve a teaspoon of citric acid powder in 3-4 teaspoons of water and insert a thermometer. After a few seconds, record the temperature. Slowly add a teaspoon of baking soda a little at a time. Record the temperature, then wait 3 seconds and record it again. Repeat every 30 seconds or so for about 5 minutes. What do you notice?

Now, for the interesting twist my son discovered yesterday:
Wash off the thermometer, then leave the mixture out for an hour or so. Record the air temperature, then stir the mixture and measure it's temperature. Wait 30 seconds and measure again, then another 30 seconds and measure (and record) yet again. Now remove the thermometer and wait 30 seconds are record the air temperature again. What do you notice?

Chemical reactions that cause a drop in temperature are called endothermic. Exothermic reactions create heat.

Wednesday, 30 June 2010

It's the Diversity that Makes our Country Great!

Canada's greatest strength has always laid in its diversity, yet it was only a few decades ago that Pierre Trudeau opened immigration to allow for true multiculturalism. Perhaps the wait was a good thing, because we are fortunate that rather than becoming a "melting pot" where cultural identity is lost, we have become a cultural mosaic in which we have grown into a globally minded national community. Tolerant is not the right word, because it isn't that we just "put up with" differences among our people, but rather that we celebrate the richness that such diversity brings.
Of course, there are those among us who think differently, and it is clear that we still have quite a long way to go before such ideals are a reality for every Canadian, but I would argue that although the going is slow, and we suffer setbacks now and then, that on the whole, we are headed in the right direction and I have faith that we will in fact get there, if not in my lifetime, then most definitely in the lifetime of my children.

And while I'm discussing diversity, it it worth mentioning that 2010 is the International Year of Biodiversity.

If you're like me, when you hear the word "biodiversity" you immediately think of the Amazonian Rainforest. But I'd like you to turn your thoughts closer to home (assuming you live in Canada--if not, turn them northward for this post).

Canada is a vast country that has it all--tundra and rainforest, prairies and mountains, wetlands, lakes and ocean vistas. We have boreal forests that span the country and more fresh water than any other country on the planet. Unfortunately, we also tend to lack an appreciation for what we have, and have shown an alarming tendency to pillage it in the name of profits.

Recently though, there have been some very favourable signs of hope that we are starting to appreciate and value the land, waterways and oceans and the flora and fauna.

A significant conservation agreement was recently ratified by a group of forestry companies and environmental groups in order to protect a vast amount of Canadian boreal forest. This agreement means everything for the native caribou who now stand a much more favourable chance of recovering in numbers. It is also important for the innumerable other boreal species whose habitat will be saved.

If that wasn't enough for some of us, the Queen Charlotte Islands, now renamed back to Haida Gwaii, has been named as Canada's first Nat'l Marine Conservation Area Reserve. This is important because it is the first time Canada has created a protected area that spans both land and sea.

We may have a long way to go, but we're headed in the right direction!

Oh Canada, Glorious and free!
Boreal forests, old-growth pines, coastal rainforests--I stand on guard for thee!
Diversity, global vision, basic human rights--I stand on guard for thee!

Saturday, 26 June 2010

The Importance of a Good Night's Sleep

Did you know that 120 years ago the average person slept 10-12 hours a night? Now it's more like 6-8 hours for most. We know that people function better and are healthier and less prone to depression when well rested. And yet, we continue to deprive ourselves of this very basic need.

I, for one, suffer for lack of sleep. The rest of my family seem content to sleep 7 hours or less, while I struggle with it. Why is it we have so much less time for sleeping? Before electricity and central plumbing people had many more chores to do to keep a family going--farming, to outside work, sewing/knitting, cleaning, food preparation, even getting water were much more labour intensive activities. So why do we have less time now?

I'd guess that there are hidden time costs with many technologies. We are tuned into (and addicted to) screen activities, such as maintaining a blog, catching up on email, online social networking, video games and television. We are celebrity obsessed, or so it would seem each time I visit the grocery store and see all the magazines at the checkout. Our kids are enrolled in structured after-school activities. We need to spend time backing up hard drives, taking the car into the garage for maintenance, going to more medical appointments than ever, and so forth. We travel further and more often.

I find that once the kids are asleep, I have an urge to "catch up" on email, Facebook, Twitter, my website, blogging, etc. Then I want to spend a little time with my husband. By then it is often midnight or later, and we need to get up early to start all over again. And life zooms by as I struggle to wake up and catch up. In living this way, I miss things and lack the patience my family deserves. It is time for a change.

120 years ago, life was hard yes, but simpler. (Warning: sleep-deprivation caused cliches ahead!)
"Work hard, play hard"; "early to bed and early to rise". We could use a little less complexity in our lives, or at least, I certainly could! After all, "life is not a race". It's easier to "smell the roses along the way" if you're not so bleary-eyed with sleep deprivation that you miss them altogether. So if I don't update my blog daily, or miss a day on Twitter or Facebook, you'll know it is because I have decided to try and get a good night's sleep. Maybe you can too!