In todays activity was to use the peelings of a spherical orange to determine the formula to find the surface area. First we had to cut it in half, trace the circumference as many times as needed, then peel the half oranges and fill as many circle fully with peelings. As a result, 4 circles were filled giving me the conclusion that >>
Area of Sphere could = 4 x (pi) x diameter.
However, this is what I assume.
Garibaldi is a lake you may recognize from many well known photos of Canada. The lake is glacier water dammed on one side by lava formation (aka The Barrier), along with feeding Rubble Creek and it is located north of Squamish and south of Whistler, BC.
Estimate how much water the Barrier contains behind it in the lake?
To get a general idea of how much water the lake consists of requires to find the approximate volume of the lake. There are many ways to find volume and since Garibaldi Lake isn’t exactly a circle or has a flat lake bed, its needed to assume the lake as a shape like a triangular or rectangular prism because the surface can be rectangular and have it triangular for the floor inclines as you go deeper.
The formula for volume of a prism is >> V= base area x height – or depth in our case.
The known area of Garibaldi lake is 9.94 km square and the average depth of the lake is 119 m. To complete the equation, first kilometres has to change to metres and since 1 km = 1,000 m, 9.94 has to be multiplied by 1,000 in which = 9,940 m.
Since the units are now the same, they can be multiplied>>
9,940 m = area 119 m = height/depth
V = (9,940) x (119)
= 1,182,860 m cubed
Therefore, 1,182,860 m cubed is the estimate for how much glarier water Lake Garibaldi has.
If the Barrier faulted, what do you think would happen? Consider; how much water would escape, and what kind of power is the escaping water equivalent to?
For how much water may escape, consider the depth of the barrier. The Barrier was form 9,000 years ago from lava flow from Mount Price, it has the length of 2.4 km and the height of 243 m, along with allowing for Rubble Creek to outflow from Garibaldi Lake. The max. depth of the lake is 258 m, which leaves around 15 m difference.
To determine how much water might escape, its needed to calculate how much would remain. We already know the volume of the lake = 1,182,860 m cubed. Therefore >>
max depth – 1,182,860 m per 258 m
258 m/15 m = 1,182,860 m/x
= 15 x 1,182,860/258
= 17,742,900/258
= 68,771 m cubed
then>>
1,182,860 m – 68,771 m = 1,118, 089 m cubed
From this, around 1,118,089 m cubed would escape while 68,771 would remain in the lake.
For what would happen if the water could escape, it would most likely flood over Squamish, having the flow 120 metres high he estimates, according to Dr. Quane from Quest University, it would be catastrophic.
The provincial government deemed the area below the lake to be unsafe for human habitation in 1981 due to its instability in volcanic and tectonic activity or heavy rainfall.
“Geologically, the chances of this happening are almost certain”, he said “But the probability of it happening in our lifetime is really low”
Resources
Garibaldi Lake a ticking time bomb?
Garibaldi Lake: Everything tourists (and you) need to know before you go
This is a video of me testing out my new rain gear for the year, checking if they are waterproof, or at least keeps me dry on rainy days/standing in showers.
I have placed these shared hyperlinks of the video because the full video was to big to post and even after trimming it took to long to load. Well, click on the links below to watch parts of the test. Enjoy 🙂
Please let me know in the comments if links don’t work.
Podcast Notes
What type of gene mutations did scientists edit?
What is a germ line mutation? How many do humans have?
Why do scientists perform gene therapy at the embryotic stage?
“The embryotic stage is the earliest stage to perform the gene therapy before the time of fertilization. Scientists were tasks to access and change the mutation, so they work at this stage because basically when the child is born, the mutation has already been incorporated in the development, so changing every effected cell (which are billions) back to normal is impossible.”
Do you agree with the practice of humans altering genomes of species? Why or why not?
“Well generally, I wouldn’t go for it because DNA is coded instructions for the development of organisms, so it seems like a delicate process to alter and it shouldn’t be messed with. However, of course the purpose of gene therapy research is to find a safe treatment of genetic diseases, so I would only agree to that.”