Patrick Truchon's Web Portal

Posts Tagged ‘random’

To keep things in, or to keep things out?

Posted by Patrick on April 30, 2009

I just read an article explaining why wearing surgical masks won’t really help the spread of the flu:

“Infectious disease specialist Dr. Andrew Simor said surgical masks are recommended for staff in the close confines of hospitals and long-term care centres to prevent transmission of flu viruses and other microbes from patients to care providers.

The risk of health-care workers contracting influenza from an infected patient is increased because of prolonged close contact and medical procedures that may cause the patient “to cough and splutter all over you,” said Simor of Toronto’s Sunnybrook Health Sciences Centre.

But when it comes to the public at large, wearing masks would have little benefit, he said. “Those things don’t happen as you’re sort of going about your daily business buying groceries or watching a movie.” ” [1]

What struck me is the unquestioned assumption that people should wear masks to protect themselves. After living three years in Taiwan, I got used to people wearing surgical masks everywhere when they are sick; the obvious purpose being to prevent others from being infected… Even in my school, it’s not unusual to see a few students wear a mask all day long.

The two questions that I’m now wondering are: if sick people were the ones wearing the masks, would that help the slow down of the epidemic? And why are Taiwanese so oblivious to others when they drive, but so considerate when they’re sick?

Links:

  1. LifeStyle from Yahoo <http://health.lifestyle.yahoo.ca/channel_health_news_details.asp?news_id=17865&news_channel_id=1026&channel_id=1026>

Posted in Uncategorized | Tagged: | Leave a Comment »

Laser engraver plays Super Mario Bro. Theme…

Posted by Patrick on April 18, 2009

… with its stepper motors. [1]

Links:

  1. Vimeo, <http://vimeo.com/4028427>

Posted in Uncategorized | Tagged: | Leave a Comment »

A different point of view…

Posted by Patrick on March 2, 2009

It’s always a good exercise to imagine the world from a different point of view. Here is one I definitely never thought about: what would a restaurant like Sushi Express look like from the perspective of… a plate of sushi.

Well, a woman in Japan found out… It’s pretty funny to see the reaction of people…

Posted in Uncategorized | Tagged: | 1 Comment »

200 years ago…

Posted by Patrick on January 20, 2009

Take a few seconds to stare at this picture…


You’re looking at people who were born almost 200 years ago! Like this commenter said:

“The thing that amazes me [...] is that we’re looking at a “modern” photo of someone born in 1812. The changes that person would have seen are simply mind-boggling. [...] James Madison was president when they were born, and America was only 36 years old. And here they are in a relatively “modern” photo. Totally amazing.” [1]

For some reason, staring at the full size picture [2] gives me a strange sense of vertigo…

Links

  1. Shorphy, Slaves Reunion: 1916, <http://www.shorpy.com/node/5380#comment-52670>
  2. Shorphy, Slaves Reunion: 1916 (Full size picture), <http://www.shorpy.com/node/5380?size=_original>

Posted in Uncategorized | Tagged: | Leave a Comment »

Some Quotes I’d Like to Remember…

Posted by Patrick on November 21, 2008

“Action without philosophy is a lethal weapon, philosophy without action is worthless”

–Soichiro Honda

“A person who is nice to you but rude to the waiter, or to others, is not a nice person.”

–Bill Swanson

“La musique c’est mon pays libre
C’est mon jouet c’est pas une mine d’or
J’ai pas besoin de votre accord sur ma guitare”

–Kain, Jusqu’au Ciel

“People hardly ever make use of the freedom they have. For example, the freedom of thought. Instead they demand freedom of speech as a compensation.”

Søren Kierkegaard

“If a motorcyclist wants to show national pride, enhance social safety and family happiness, he/she must: (1) drive ethically and obey the laws (2) have great driving skills (3) stop smoking and drinking”

–Taiwanese Motorcycle Driving Test Question

“Telle est la faiblesse de notre raison: elle ne sert le plus souvent qu’à justifer nos croyance”

–Marcel Pagnol, La gloire de mon père (p. 16)

“If your theory is found to be against the second law of thermodynamics I can give you no hope; there is nothing for it but to collapse in deepest humiliation”

–Sir Arthur Eddington

“The true is not superior to the good and the beautiful. The true and the good and the beautiful belong essentially to every human existence and are united not in thinking them but in living them.”

– Soren Kierkegaard

“What we call Man’s power over Nature turns out to be a power exercised by some men over other men with Nature as its instrument”

–C.S. Lewis, The Abolition of Man, p. 69

“Time does not heal the wound, it will though, in its most merciful way, blunt the edge ever-so slightly.”

88 Minutes (movie)

“Happiness is only real when shared.”

Into The Wild (movie)

“Something unknown is doing we don’t know what.”

–Sir Arthur Eddington

Posted in Uncategorized | Tagged: | 2 Comments »

I don’t know

Posted by Patrick on November 7, 2008

I always like to figure out in which of the four cells of this table my beliefs fall:

There’s stuff…

…I know that I know …I know that I don’t know
…I don’t know that I know …I don’t know that I don’t know

Doesn’t this also apply to politicians and public figures? After reading this article from the BBC [1], it would seem not [insert sarcastic face here] Why that is is definitely something that I know I don’t understand…

Richard Feynman was, in the world of physics, one of the greatest minds of the previous century. And yet, he said: “… I’m not absolutely sure of anything, and [there's] many things I don’t know anything about …” [2]

Isn’t it ironic that such a brilliant mind, studying one of the most precise sciences, would be so aware of his own uncertainty, while regular folks, debating such complex fields as politics, psychology, or education, are so sure of themselves.

Why is that?

There’s definitely something to be said for entertaining doubt…

In fact, in math 11, we have recently begun exploring ways to approximate statistical uncertainties. For example, by measuring the time it takes for a weight to slide down an inclined air track from 20 different distances, students found out that the acceleration due to gravity was (9.5 ±0.1) meters per second squared. Although the “answer” of 9.5 is interesting, the uncertainty of ±0.1 is extremely important. What’s more, this uncertainty only describes random error and says nothing of the systematic errors that might have crept in the measurements… That’s why there’s even whole field of statistics devoted to the study of error analysis. [3]

Why are people so afraid of saying “I don’t know”?

Links

  1. BBC, Three Little Words So Hard To Say,
    <http://news.bbc.co.uk/2/hi/uk_news/magazine/7711221.stm>
  2. BBC Interview with Richard Feynman,
    <http://www.youtube.com/watch?v=_MmpUWEW6Is>
  3. Wikipedia, Error Analysis,
    <http://en.wikipedia.org/wiki/Error_analysis>

Posted in Uncategorized | Tagged: | Leave a Comment »

 
Follow

Get every new post delivered to your Inbox.