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Hi, Frank. What are you up to? Is that really a French grammar book? Well, I'm trying to teach myself some French. For I wanna go to Montreal next semester, I don't want sound like just another tourist. Most of the people there are bilingual. Leave Boston to go to Montreal? I didn't know this university had a program in Canada. It doesn't. I'm planning to take a short leave of absence from school so I can go there on my own. What’s the reason for this sudden interest in Canada? Well, actually I've been thinking about going for some time now. I know someone there who's been wanting me to visit. A relative? An old friend of my uncle's runs a chemical engineering department up there. So I'm hoping he can help me enroll in some interesting courses. If you want those credits transferred back here later on, you'd better arrange for it before you leave. Don't forget what happened to Susan after she came back from Rome. Yeah. But her situation was different. I already have all the credits I need to graduate. So you'll be taking the courses just for the sake of learning. That will be a nice change of pace, won't it?

It's important that you all understand that quartz heaters operate on a totally different principle than common convection heaters. Yes? Could you give an example of a convection heater?OK. But first you tell me what convection means. Uhm, well, you said in the last class, I think, that convection is the transference of heat by a liquid or a gas. Right. A heater is using convection when it warms the air in a room. And the air in turn warms the people and objects in the room. A hot water radiator, a stove and a forced air furnace are all convection heaters. A quartz heater, on the other hand, heats the objects and people in a room without heating the air. It does this by producing radiation heat that travels like light waves. When the quartz crystal in a heater vibrates at a particular frequency, its energy is turned into infrared radiation. The radiation is then directed at objects by means of a reflector. If that's clear, let's move on how room design can affect heating efficiency.

As a result of rising university costs, many students are finding it necessary to take on part-time jobs. To make finding those jobs easier, the placement services put together a listing of what is available locally. For some students these part-time jobs could lead to full-time work after graduation as they may offer experience in their own fields, be that finance, marketing, or even management. For example, National Savings Bank offers work on a half time basis: that's twenty hours a week. Retail stores and restaurants have positions requiring fewer hours, even less time as expected of those providing child care. We have a number of families registered with us who were looking for baby sitters for as few as four hours a week. For students who prefer outdoor work, there are seasonal positions right on campus working with the gardening and landscaping teams. These often require the most time and are the least flexible in terms of scheduling. To see a complete list of these and other available jobs, including the salary offered and the hours required, stop by our office. Oh, and be sure to bring a resume with you. When you find something that interests you, we'll put you in touch with the person offering it. In addition, our counselors will give you hints about successful interviewing

In this century photograph have been really important for teaching our history. I'll show you what I mean at the moment with some photographs taken by Peter and Paul Julie. The work of these two photographers has been a very useful source for studying the arts produced in the United States from 1896 to the present. Peter and Paul Julie were not artists but they were a regular part of the New York art theme. They took over a hundred thousand photographs which document the lives and work of thousands of artists. Peter Julie is known as a pioneer in this field of art photography. Georgia O’Keeffe and other famous artists sought him out to take pictures of their work. His specialty was photographing paintings. His son Paul photographed sculptures. Some of their most important photos are the ones of the works of art that have since been destroyed. One example is a photo that we'll look at today. Would someone give the lights please? Ok. This slide is from a photograph of a painting by Edward Hopper called Corn Belt City. The painting was exhibited only two or three times before it was destroyed in a fire. Without the Julie photograph, no visual record of the work would exist. Although the Julie's mostly photographed the work of painters and sculptors, they also occasionally photographed architectural subjects. They did quite a few photos of buildings by John Russell Pope. And we are going to look one of those next.

Did you know that vegetables can be tricked into growing in the climates they are not accustomed to? Cool climate vegetables like asparagus are now able to be grown in places as hot as Hawaii. In Hawaii, marine engineers have been able to actually convince such vegetables that they are living in cooler climates. That way they grow faster and taste better. What these engineers have been using is very simply cold sea water. How did they use it? They place pipes in the soil and cold water flowing through them cools the earth. This stimulates plant growth and enables gardeners in tropical climates to grow crops from cooler climates. Also some of these pipes are exposed to the air and they condense moisture and thus irrigate the gardens. What is especially appealing about this process is that nothing damaging to the natural environment is being used. Another innovative use for cold ocean water is to cool buildings. Engineers believe that for example the entire west coast of the United States could be air-conditioned using seawater. We'll be back to discuss that possibility after this commercial message.

一句话：强迫自己每句话最多听三遍，三遍之后只想拿刀插自己

Hey, Karen. Look like you've get some sun this weekend.Yeah? I guess so. I spent the weekend at the beach.Oh, yeah that’s great. Where did you stay? Some friends of my parents live out there, and they invited me there for as long as I want to stay. So what are you doing back here already? (Oh, I have a paper I need to work on. And I just couldn't do any serious studying at the beach. I don't blame you. So what did you do out there? I mean besides lie out in the sun, obviously. I jogged up and down the beach and I played some volleyball. You know I never realized how hard it is to run on sand. I couldn't get through a whole game before I had to sit down. It's much easier to run on wet sand near the water. Not to mention cooler. Did you go swimming? I wanted to. But they said the water isn't warm enough for that until a couple of months from now. So I just wetted in up to my knees. It all sound's so relaxing. I wish I could get away to the beach like that.
8 d! C( z' x; k* EIt looks like you could use it. Don't tell me you spent the weekend in the library again.

Thanks for stopping by, Ann. I'd like to talk to you about a research project I thought you might be interested in. A friend of mine is working in Yellow Stone National Park this summer. Yellow Stone? I've always wanted to spend sometime out Wyoming. Wait till you here what the project is. She is working with the buffalo population. Their herds have been increasing in size lately which is good in theory. Yeah. but I thought they were in danger of becoming extinct Well, apparently because of all the winter tourists, paths are created in the snow. More buffalo are surviving the harsh winters because the paths make it easier for the buffalo to move around and find food. But it turns out that some of the herds are infected with bacteria.Oh, yeah. I heard about that A blue A blue seller aborters.Right, It has been around for quite a while. Yes, it has. And because the buffalo population is increasing, they have been roaming more than usual. And the diseases begins to spread to the cattle ranches that border the park. That’s bad news. Isn't that the disease that causes animals to abort their young? Yes. And it caused a lot of controversy. Some of the ranches even want to destroy the buffalo herds. That's awful. Have they made much progress with the research? So far they have been collecting tissue samples from dead buffalo to see if bacteria are present. I’d really be interested in working on this. You know I've been researching diseased animal population. That’s why I thought of you. I took the liberty of mentioning your name to my friend. She's hoping you'll be able to spend the whole summer out there. Well, I was going to work on my thesis a lot in July, but I'm sure my devisor wouldn't want me to pass up this opportunity.

Welcome to Everglade National Park. The Everglade is a watery plain covered with saw grass that's home to numerous species of plants and wild life. And one and a half million acre is too big to see it all today, but this tour will offer you a good sampling. Our tour bus will stop first at Tailor Slue. This is a good place to start because it is home to many plants and animals typically associated with The Everglade. You will see many exotic birds and of course the world famous alligators. Don't worry there's a border walk that goes across the marsh so you can look down at the animals in the water from a safe distance. The border walk is high enough to give you a great view of saw grass quarry. From there we'll head for some other marshy and even jungle-like areas that feature wonderful tropical plant life. For those of you who'd like a closer view of saw grass quarry, you might consider running a canoe sometime during your visit here. However don't do this unless you have a very good sense of direction and can negotiate your way through tall grass. We hate to have to come looking for you. You have a good fortune of being here in winter, the best time of the year to visit. During the spring and summer, the mosquitoes were just about to eat you alive. Right now they are not so bothersome but you will still want to use insect repellent.