Friday, March 27, 2009

You, Sir, Have gone too far ...

A while back, at a previous University I decided to maintain a more professional, vertical relationship with students. I got into the habit of learning and using peoples surnames and prefacing them with either "Mr." or "Ms" as appropriate. I felt that this gave better impact from statements such as "Mr. Smith, put down the Wuperman expostulator and step back".

I realize that other professors, if they learned names at all, preferred knowing student's given names. To each their own I guess.

It does however speak to what happens next. Years of formality mean that the students themselves resist the dropping of the formality long after the student - teacher relationship is over. I would hate to think the the longest lasting piece of information that my students retain is the intuitive feeling that if they call me by my first name I will give them a lower mark on their next test.


And that brings me to the next topic addressed by cartoons.

LINK TO CARTOON


Students often tell me that me and my class play the roll of evil villain in their dreams. Just what am I supposed to do with that information? It is like this sequence of cartoons from Sheldon ...



LINK TO CARTOON









Thursday, March 26, 2009

More Biology than Chemistry But Still Science

The Australians (bless their drought stricken hearts) imported toads to eat beetles in their sugar cane fields. Australian sugar cane grows taller in Australia than in their home habitat so the toads could not, did not eat the beetles but they found other things to eat and their numbers exploded. So, now the Australians are going to fight the toad hoards with a bounty, looks like about fifty cents per toad.

Now we have seen other "festival" animal slaughtering events in popular culture including:

And Weird Al's "Weasel Stomping Day" (LINK)


I just find it all a bit weird. I just hope that when our alien overlords show up that they won't have "Fat Baptist Professor Whacking Day" (although I suspect that there are some ex-students who have their bats ready for that hoped for day).

Sunday, March 15, 2009

We Need to Raise Kids that are Smarter Than We Are

I don't know if anyone is monitoring this page any more, I sorta lost my edge. We will see how this goes.

I am not a doomsayer and I have not drunk the Kool-aid on anthropogenic climate change. The facts on sustainability are not in dispute though. Our working thinking has got to be that our children, when faced with problems that we created but can not / could not solve, will be able to solve them. Make sure they eat their fish while the oceans have fish to give us.

On that depressing theme Jorge Cham relates his recent visit to Canada. It is all pause for thought.


Click on image for larger view


Now, I would say this about that. I am a child of the 70's when the Cold War was hot and Alvin Toffler was the lead doomsayer that fed off our societal guilt about our profligate ways. There did not seem to be a solution to the population, pollution and political problems in the 70's as we marched to our inevitable nuclear holocaust. And yet, it turned, and we lived.

It all reminds me of those incredible verses from Joel and Jonah that express a hope and a sense of being unsure about future events (pretty rare in the Bible):

Joel 2:14 (NIV) 14 Who knows? He may turn and have pity and leave behind a blessing— grain offerings and drink offerings for the LORD your God.

Jonah 3:9 (NIV) 9 Who knows? God may yet relent and with compassion turn from his fierce anger so that we will not perish."

Thursday, February 12, 2009

CH1023 Formal Report Research Topics


Students may select their topic only in the comments section of the message in ensure first come first served.

1] Chemical History of Aspirin
2] Chemistry of Salicylic Acid and related organic acids
3] Chemical Structure and Properties of Painkillers
4] Chemistry of Aspirin Related Painkillers
5] Chemistry of homeopathic pain medications
6] Chemistry of Methyl salicylate and related compounds
7] Other topic related to the laboratory in agreement with the instructor

Wednesday, February 04, 2009

Mike Says We Need a Logo

I was having a conversation with Mike the other day and he mentioned that he thinks we really need to have a bright, simple logo for ABU Science. We could then get stickers, transfers etc made and have our own unique brand.

We have played with this idea in the past and this was the sort of thing that I came up with but it looks too chemical. It is bright and simple though. Are there any students interested in graphic design or squeezing a graphic designer that could make something up for us to consider? I would be willing to sponsor a prize if the students wanted to contribute possible logos. Anybody want a beaker mug? We would have to come up with some kind of formal contest if there was any interest.

Friday, December 05, 2008

The Terror of Risk

It seems that the media is like the creepy Nazi from The Marathon Man who sorrowfully remarks that in the previous days torture they had killed the nerve in the tooth that he was using to cause the Dustin Hoffman character pain. He then continues that they would have to drill into a healthy tooth to expose the nerve so they could continue the torture.

What I mean is that the media is constantly bringing some low risk, next to impossible event or complication and hitting us with it so that we will a) pay attention so that we can avoid the horrible fate and b) advocate the removal of all risk of this ever happening.

Now there are some campaigns that make a lot of sense. I can remember when pretty much everyone drove around in cars without wearing seatbelts while smoking. The causality and probability of both seatbelts and smoking were pretty much well established. On the other hand the fear of terrorists, contaminants in our drinking water and food is pretty much a fabrication created by exposing the incredibly improbable as possibly happening to you.

The latest is toxic epidermal necrolysis and its association with fairly common medications. What they do not tell you is that the necrolysis only happens once in a trillion prescriptions. No, fear sells almost as good a sex. In this case there is an incredibly small risk when you take certain medications that your skin will fall off in a horribly debilitating and quite often fatal drug reaction (LINK TO STORY) . There is no doubt that the people who suffer this reaction deserve our support and sympathy but they should not be used as a fear tactic to remove perfectly good medications from circulation.

This is in fact the reason why so many drugs fail in trials. There are many drugs that have been tested and have worked well for common conditions. The problem is that one in a thousand or one in five hundred patients will have an adverse reaction so the drug is withdrawn. We need our medical societies to step forward and set or recommend proper regulations for drugs so that as long as adverse reactions fall below a certain threshold (I'd say one in a thousand would be OK as long as I am not the one) the pharmaceutical manufacturers would be protected.

I don't know that pretty soon we will be chewing on willow branches and rubbing eels on our warts if we don't start accepting a certain level of risk.

Saturday, November 22, 2008

Trust the French: Natural Recycling

Found on the internet ... it made me smile. I like the paradox of using the highest level of animation to produce a minimalist video with no real dialogue and simple plotlines. This reminded me of the Skrat clips from the Ice Age videos (which also made me smile) and the amazing introduction to Wall-E (which left me stunned with its brilliance).


The editors at Boing Boing make the excellent point that although Miniscule video clips are spread all over the internet the French animators are trying to make a living at this and we should feel motivated to purchase their products.

Thursday, November 13, 2008

OK, Now this Guy wins the Crystal Growing Competition

I am not a big fan of post-modernist art. I just don't get performance art and don't like dissonance and abstraction.

This I get.



This guy turned an entire apartment into a crystal growing experiment and called it "Seizure". A number of students at the end of the crystal growing competition looked at the bottom of their beakers and commented on the thick pad of well formed crystals that covered the bottom. Now imagene a whole apartment covered with those crystals.




I would have some concerns about exposure to the crystalline dust by going into the apartment and there is such a thing as copper poisoning but on a cool scale this is way cool.


Saturday, November 01, 2008

New Brunswick in the News: Tungsten


The CBC is reporting that a company in New Brunswick has found a mineable ore body that it proposes to work for tungsten. It would appear that the most important user for the product is the nation of China. In fact the company homepage has a Chinese language link about the project. I knew about zinc and copper (and in fact antimony but we don't mine it anymore) but this is the first that I had heard about tungsten in New Brunswick.


Tungsten has a number of uses that relate to its physical and chemical properties of high density, hardness and relative inertness. It seems to be an important component of speciality steels where performance at high temperatures is important. There is an alloy called high speed steel that can be up to 18% tungsten. Of course, the feasibility of the mine is related to the demand for the metal and the cost of mining in New Brunswick.
Once again we will need to carry out the dreadful algebra to determine if the upheaval of our environment (and probably public financial support) will equal 250 resource based jobs. just look at the GeoDex webpage picture of the mine sight and it just looks like New Brunswick. Of course you could argue that NB has lots of scrub forest and could easily live with a couple hundred acres less if it meant real jobs. I am glad however that a full environmental impact statement is going to be done. I would also like to know if this is simply an ore extraction or if there will be some processing of the ore before it leaves Canada.

Friday, October 31, 2008

Environmental Chemistry Experiment in Fredericton

This is the basis for an ongoing environmental nightmare in Fredericton.

First you spill some chemicals (LINK to story): namely 2,700 litres of chromium trioxide spilled by Custom Machine & Hardchrome.

Second you MAIL the following notice to the affected people (LINK to announcement): "The Department of Health continues to advise about a dozen homeowners and several businesses in the Evergreen Park area outside Fredericton not to consume their well water, or use it for cooking, bathing or any other use which would bring it into contact with their body."

Third you ignore the affected people so that an older couple ends up drinking the rainwater from their roof downspout. (LINK to story).

This is really as bad as it gets environmentally speaking. This is a citation from the Wikipedia page on CrO3:

"Chromium trioxide is highly toxic, corrosive, and carcinogenic. Chromium trioxide may cause cancer and/or heritable genetic damage. It is explosive when mixed with combustible material. It is toxic in contact with skin and if swallowed and very toxic by inhalation. CrO3 causes severe burns and may cause sensitisation by inhalation and skin contact. It is also toxic: danger of serious damage to health by prolonged exposure through inhalation. There is a possible risk of impaired fertility. CrO3 is very toxic to aquatic organisms may cause long-term adverse effects in the aquatic environment."

This is the stuff that made Erin Brokovitch famous. I just hope that Custom Machine & Hardchrome has very very good insurance and that this won't just be a case where the company just folds up and the province is left with the clean-up. I do however wish that someone would offer the old couple a cup of cold water in Jesus' name.

Wednesday, October 22, 2008

X-rays in your life


I love this paper on X-rays generated from unrolling Scotch tape in a vacuum. They even proved it by using the X-rays to take a picture of a researchers finger. To do that the researcher would have to have his hand in a vacuum chamber long enough to expose the film. That is loving your research. This is the kind of work I would love to be involved in. Absolute genius.


Tuesday, October 21, 2008

National Chemistry Week Crystal Growing

It is National Chemistry Week (LINK) and the highpoint of the week will be Mole Day (October 23 ... 10.23 ... you know .... Avogadro's Number ... 6.02 x 10(23) ... man, it kills the mood when you have to explain everything).

So, in the first year chemistry class we tried growing crystals of Potassium Aluminum Sulphate ...


And Copper (II) sulphate.


All in all the crystals were very nice. The class set of crystals can be seen by following the link below.

Saturday, September 27, 2008

ABU Riverkeepers

So, the ABU Biology Society and their faculty sponsor Penny Humby got us all up on a rainy Saturday morning to drag other people's garbage out of a nameless brook we had never really noticed before. This professor took his camera and whenever he took a photo the students would all look sad and feign intense interest in gum wrappers.

From 2008-09-27(BI3513Riverkeepr)

So I passed the camera off to a student and suddenly the other students were posing like models for the Eatons catalogue (go figure).

From 2008-09-27(BI3513Riverkeepr)


So they took my camera and wandered off to play Riverkeeper in their own 'hood and they even formed a gang called the Keypurz .. here they are with their peeps flashing their gang signs. ]

From 2008-09-27(BI3513Riverkeepr)

Some people took Riverkeeping to a whole new level of personal participation.

From 2008-09-27(BI3513Riverkeepr)

Finally at the end of a long wet morning the students met a hillbilly and his pet snake.

From 2008-09-27(BI3513Riverkeepr)

This is a slideshow of the rest of the photos:


Thanks to all the students that participated and for the Biology Society for getting us together. And thanks to Somer for taking the photos of students with smiles.

Things that Make Me Laugh: Science Ads

Chemists get a reputation as humourless, soul-destroying trolls that hide under bridges and kill any hope that wanders by. It is therefore quite pleasing to see a thin layer chromatography firm depart from the stereotype and show a sense of humour in this clip that is in fact an extension of a famous Monty Python skit. The cinematography and acting are very good for this sort of thing so it must have been a labour of love for the owners of the company.



Thursday, September 25, 2008

Internet Serendipity

Came across both of these on the same day and the serendipity of it all it made me laugh ...


"The Scriptures are so chop'd and minc'd, and as they are now so Printed, stand so broken and divided, that not only the Common People take the Verses usually for distinct Aphorisms, but even Men of more advanc'd Knowledge in reading them, lose much of the strength and force of Coherence, and the Light that depends on it" John Locke

CHEM 1013 Lab 2 Penny Data

So we have been working in the penny library for a fortnight now and we have counted and measured pennies ....
And boiled pennies in acid ...


All in the name of science. So now it is time for us to collect our data as a class. Use the comments section of this post to give the densities that you measured. Give them as YEAR (Density gcm-3) [so you should report them as 1993 (7.8 gcm-3)]. This way you will be able to compare your data in your formal report with the data from the class.


Sunday, September 07, 2008

Charles We Hardly Knew Ye

Science is done by human beings and we as humans share much that is mundane about our lives. There is a new book out now that explores the real, human side of scientists that loom large in our minds and imaginations. Check out this description ...



"He suffered from incessant retching or vomiting, usually brought on by fatigue; and from painful bouts of wind that churned around after meals and obliged him to sit quietly in a private room until his body behaved more politely. Reading between the lines, his guts were noisy and smelly. "I feel nearly sure that the air is generated somewhere lower down than stomach," he told one doctor plaintively in 1865, "and as soon as it regurgitates into the stomach the discomfort comes on." He was equally forthright with his cousin...: "all excitement & fatigue brings on such dreadful flatulence that in fact I can go nowhere." When he did go somewhere, he needed privacy after meals, "for, as you know, my odious stomach requires that."He also had trouble with his bowels, frequently suffering from constipation and vulnerable to the obsession with regularity that stalked most Victorians. He developed crops of boils in what he called "perfectly devilish attacks" on his backside, making it impossible to sit upright, and occasional eczema. There were headaches and giddiness. He probably had piles as well."

Sort of makes you see Charles Darwin in a whole new way don't you think?



Friday, September 05, 2008

Five Days to Get Your Life in Order

It would appear that they are about to switch on the Large Hadron Collider. You may remember this installation for the initial word that it would be able to find the "God particle" and later on that when the thing was turned on it would cause the existing universe to wink out of existence. It would appear that someone has corrected the math on that issue.

I especially like the calming reassurance: "As the Safety Assessment Group writes, “Each collision of a pair of protons in the LHC will release an amount of energy comparable to that of two colliding mosquitoes, so any black hole produced would be much smaller than those known to astrophysicists.” "

So if you have anyone to apologize to or to show some love you have until September 10th.

It still makes me think of this cartoon:


LINK TO LARGER IMAGE

CHEM 2113 Lab #1 Class Data

This is the post for the class to combine it's data collected in the first lab. I want everyone to log into the comments section of this post and leave any data that you have on the compounds.

for example;

Compound E: m.p. 123.5 - 125.0 oC
Compound E: TLC (CH2Cl2) Rf = 0.123
Compound E: TLC (acetone) Rf = 0.789

Tuesday, September 02, 2008

Welcome Back: Questions for Prof. H.

1. Why blog?

Three reasons really: ego, access and anonymity

Ego: The nature of the internet ensures that this is a public forum with a memory. People throw stuff on the internet without thinking about it much but it all gets stored somewhere. With that in mind a person has to believe that they have something to say that other people need to read.

Access: This blog will pretty much be "active" 24/7 which means that it can function as a forum for the courses anytime that a student has opportunity to work on the course. Perhaps I will not be signed on but a message can be left that another student might be able to read and help.

Anonymity: Some students just do not do the "face-to face thing" very well. They may come to my office with specific goals and questions and then let the stress of the encounter cut the meeting short or incomplete. A blog gives a student a chance to think things through and make sure that they get what they need (or at least they have the opportunity). The anonymity is important in that it is possible for the student to participate without me or their peers developing a negative opinion of them.

2. How would this blog be different from other online forums?

This could be done internal to the university computer system. I noticed that when Union University had a tornado tear apart their campus they had an off-site blog ready to go (LINK) and that reinforced in my mind the importance of having multiple lines of communication.

I see that some courses are supported by Facebook pages and that has two problems in my mind: a loss of anonymity and Facebook contact with the professor (both of which can have their problems if you tend to be a bit wild on Facebook).

3. What will you use this blog for?

If you look over the posts prior to this one you will see that there are three basic types of post:

a) Course information / discussion quick announcements especially for students that may have missed something, I might be able to emphasize here. I will also routinely post links and comments to information on the internet that relates to concepts taught in the course.

b) Course assignments: This is something that I have tried before and I don't think I have it quite right yet but would like to try again. I will post a problem and the class will work together to post a solution to the problem in the comment section of the post and only students that log in and post will share in the marks.

c) Commentary: Sometimes a professor just has to vent.