Connected on 2014-06-09 10:30:00 from , Alberta, Canada
- Bugscope Team putting sample in the 'scope in just a sec
- Bugscope Team we can see the sample in the chamber now.
- Bugscope Team once the vacuum reaches the right level we'll turn on the electron beam, make a few adjustments, and start finding presets on today's sample
- Bugscope Team good morning!
- Bugscope Team We are setting up the presets.
- Bugscope Team The official session is to begin at 11:30 ET (10:30 CT). We can answer a few questions while we are doing this.
- Bugscope Team we are ready to roll!
- Bugscope Team Hello!\
- Bugscope Team YaY!
- Bugscope Team We're ready for you to begin.
- Bugscope Team Yes.
- Bugscope Team we are here!
- Teacher Hi, are you there?
Bugscope Team Hello!
Bugscope Team We're ready when you are.
- Bugscope Team you have control!
- Bugscope Team let us know when you have questions and let us know if you have any problems
- Bugscope Team A quick refresher: blue arrow to the left will give you presets to start. Click on the main image to move (to center the image on the point you clicked upon), and to increase/decrease the magnification use the red +/- above.
- Bugscope Team Scott can also drive some for you, though when he does the driving, images are *not* saved to our database for later viewing.
- Bugscope Team the cucumber beetle is waving Hello!
- Bugscope Team can you see this?
Bugscope Team Hmmm. My previous text didn't go out, Scott.
- Bugscope Team If you get a chance, can you chat with us to let us know if things are working properly?
Bugscope Team Did this finally go through?
- Bugscope Team Yay! Scott is calling you now to make sure things are A-OK.
- Bugscope Team Since you were online, Scott decided to hang up. So no phone call.
- Teacher Ok, we are here!
Bugscope Team super cool
- Bugscope Team you have control of the microscope and can drive as well as choose from any of the presets on the lefthabd screen
- Bugscope Team we're here to answer any questions you and the class may have
- Bugscope Team this is a cucumber beetle: you can see its head, its antennae, its compound eyes, and its mouthparts
- Teacher We are 2 grade 1/2 classes and a 3/4 class. Can you explain to us about the electon microscope?
- Bugscope Team it is also, as it happens, waving to you
- Bugscope Team when we use an electron microscope, our sample has to be a in vacuum, like the filament inside a light bulb
- Bugscope Team so the insects/arthropods we are looking at are in a vacuum chamber, and we have coated them with a very fine layer of metal to make them conductive
- Bugscope Team this is what the sample chamber looks like
- Bugscope Team it's a bit hard to see the insects, but they are on a plattern the lower portion of the image we see now
- Bugscope Team the electron microscope aims a fine stream of electrons at the bugs
- Bugscope Team and the stream, or beam, of electrons, moves across the bugs the same way a TV works, in thin little lines
- Teacher how big is the microspope
Bugscope Team it is like a very big desk, and on one end it is about 2 meters tall
- Teacher what does the election microscope do to see the bug
Bugscope Team It basically bounces electrons - tiny parts of an atom - off the bugs. When they bounce off, there's a type of detector that measures them, then converts those into a picture.
- Bugscope Team the electron microscope has its own room, and it has its own cooling water and filtered electricity and compressed air and nitrogen
- Bugscope Team we control it using a computer, and now you can control it yourself, from Canada
- Bugscope Team it is a $600,000 microscope
- Teacher Ethan wonders what the microscope is made of?
Bugscope Team Lots of metal and computer parts.
Bugscope Team it's made of metal and wires and has pumps and valves
- Bugscope Team this is the beetle's mouth
- Bugscope Team If you zoom out - (use the "-" button at the top next to the word Magnification, you'll see more of this little beetle.
- Bugscope Team beetles and many other insects have two sets of what are called palps that help them taste and also manipulate their food into their mouths
- Teacher lots of oohs and ahhs as we focus in!
Bugscope Team Pretty cool, isn't it!
- Bugscope Team the little pointy things are like tastebuds on your tongue
- Bugscope Team do you want to see the spider?
- Teacher YES
- Teacher PLEASE
- Bugscope Team look at all of the eyes!
- Bugscope Team Nice job on zooming out.
- Bugscope Team I think we can count the eyes from here
- Bugscope Team the spider's head is attached to its trunk, unlike the way insects and people are made
- Teacher Are the eyes the round parts we see?
Bugscope Team Yes
- Bugscope Team below the eyes are two big jaws, called chelicers, or chelicerae
- Bugscope Team at the tips of the chelicers are the fangs!
- Bugscope Team Those pointed ends that curve inward are the fangs.
- Teacher What kind of spider is this?
- Bugscope Team it is a cute little white/gray spider, but I am not sure what kind it is
- Bugscope Team Though it looks huge, this spider is actualy very small. Its head is only about 1mm in width.
- Bugscope Team we can see two of the eyes now, on the top right
- Bugscope Team If you click on the eye, it will center the eye in the picture.
- Bugscope Team Nice work!!!!!!!!!
- Bugscope Team sweet!
- Bugscope Team spiders have to be very sensitive to vibration, so they have lots of tiny hairs that help them sense touch
- Bugscope Team Look at all the little hairs - which we call "setae" (see-tee). They're everywhere.
- Bugscope Team spiders often do not see very well
- Teacher I didn't know that!
- Teacher can you tell us how the eye functions?
Bugscope Team The eyes are little lenses, like a magnifying glass. They look completely solid - as if no light could get through - but that's just because of the way the microscope works. Light can get through. They don't see very well though.
- Teacher How many lenses does a spider have?
Bugscope Team If you zoom out a bit, you should see all 8 that are on this spider.
- Bugscope Team with the electron microscope we get very good detail of small things at high magnification, but we cannot see into things like eyes like we can with light
- Bugscope Team this is awesome -- you are doing a great job!
- Bugscope Team see the spider's fangs?
- Bugscope Team behind its head is a wooden stick we put there to keep it from tipping backwards
- Bugscope Team it's like a very small telephone pole
- Bugscope Team we cut the stick with a razor blade, and we can see the inside of the wood
- Teacher Why does a spider have so many eyes?
Bugscope Team To help it get a broader view of what is around it. We have 2 eyes, this spider has 8, some insects - like the wasp you can go see, have lots of little lenses all clumped together.
Bugscope Team The darkling beetle preset will show you some interesting eyes, along with the grasshopper and compound eye presets.
- Bugscope Team some spider web is sticky, and some is not, as Drew could tell us
- Bugscope Team it comes from different spinnerettes, I believe, and it is liquid until it comes out and solidifies in the air
- Bugscope Team the spider knows which silk is sticky and which is not, but if it gets stuck it can also eat its own web to get loose
- Bugscope Team spiders will also eat their web to recycle it
- Teacher Drew knows a lot about spider webs, but he is wondering how many different web liquids a spider can produce?
Bugscope Team It depends upon the type (species) of spider. As Scott said, some is sticky. There is a spider called the golden orb weaver that makes silk that can be woven into fabric to make really neat clothes!
Bugscope Team Those types of spiders are from Madagascar. They're big spiders, but it still takes hundreds of thousands of them just to make something the size of a napkin!
- Bugscope Team insects like butterflies, moths, mosquitoes, and silverfish have scales on their wings/bodies that help them get away when they run into a spider web
- Teacher Can you tell us about this claw?
Bugscope Team claws are often used kind of the same way we use our hands. some of them open and close, and there is a tendon called an unguitractor that makes that happen. in the middle of the 'hand,' between the actual claws, there is often a part that helps the insect cling to a surface. some of those are inflatable, in a way, as with a grasshopper, which has a bulbous part of the claw called an 'arolium.'
- Teacher Why does the bee have a claw?
Bugscope Team the claw helps it cling to surfaces and also grab things
Bugscope Team They use claws like we use fingers.
Bugscope Team It helps them cling to flowers and stems, etc.
- Bugscope Team insects have six legs, and often there is a claw at the end of each leg
- Bugscope Team no bees, no food...
- Bugscope Team this is the head of the darkling beetle, what mealworms grow up to be
- Bugscope Team you can see its antennae, and its palps, and its mandibles (jaws) on either side of the mouth opening
- Bugscope Team oh you can also see its compound eyes
- Teacher Abby wonders what the world would be like if there were no bees?
Bugscope Team Not good. Many of the fruits we eat require bees for pollination. Grain crops like wheat, barley, and maize (corn) would survive because they use wind to spread their pollen. But we'd not have very many apples, strawberries, saskatoons, blackberries or blueberries. It would be a sad place if we all had to eat cornmeal mush all the time.
Bugscope Team You should try to plant as many bee-friendly flowers as you can around your house and school so they have plenty to eat.
- Teacher we have mealworms and they are in the larva stage now
Bugscope Team sometimes people send us mealworms, and if they are live they metamorphose to the pupa stage, so we have no larvae to look at
Bugscope Team today we have a pupa and this dude, which is a beetle -- it's all grown up!
- Teacher now Morgan wonders what the world would be like without spiders?
Bugscope Team A happy place. :)
Bugscope Team spiders help keep all of the super pesky insects from overwhelming us
Bugscope Team Just kidding. It would be bad because the spiders help keep bad bugs down.
Bugscope Team Spiders eat a lot of disease-spreading flies, and also eat insects that cause problems on our food.
- Teacher does that mean spiders are not important?
Bugscope Team Nope. I was kidding. :)
Bugscope Team They are *VERY* important. See the answer below if you can. :)
Bugscope Team they are important for sure
Bugscope Team When I find them in my house, I always catch them and let them go outside. They keep stuff I don't want away.
- Bugscope Team there is a delicate balance among all of the living things, and if we upset it too much we find out, sometimes too late, that we really needed and relied on one component
- Teacher so, are there any bugs that we could do without-like mosquitoes perhaps?
Bugscope Team Unfortunately, all bugs are important. Mosquitos are food for birds and bats. We can do with fewer of them on occasion, but everything is food for something else. That's why it is rarely a good idea to exterminate things without considering the consequences.
Bugscope Team Sometimes there are too many destructive pests - like termites - but we have to be careful about killing everthing because it can cause problems for other animals and eventually people.
Bugscope Team We live in a farming area here in Illinois. So we have to be careful to balance our need to grow corn and soybeans with the needs of the wildlife. We don't always do a good job of that, unfortunately.
- Bugscope Team insects are called invertebrates becasue they do not have backbones, but really they do not have bones at all; instead, they have an exoskeleton, which is like wearing a suit of armor
Bugscope Team that is why we see so many 'hairs,' also called setae; they are used to help the insect sense its environment
- Teacher do you spray with pesticides
Bugscope Team I have on occasion. My specialty is in breeding and growing blackberries. We had a bazillion fruit flies last year that arrived from China. They are a real problem because maggots infest the fruit. If we can control them by getting rid of overripe fruit or through the use of sticky traps, we will try that before we use pesticides.
Bugscope Team If they become a huge problem, then it may be that we have to spray. But we will only do so at the appropriate time, when the spray will do the most good and cause the fewest problems for the insects we want - especially the bees.
- Teacher why does this claw have so many patterns
Bugscope Team the patterns are the shape in which it formed, and all of the intricacies make it more rigid, so that it is strong and does not bend
Bugscope Team The patterns form on their own, like your fingerprints.
- Bugscope Team bedbugs are said to be impervious to many insecticides, and it may be because they developed that immunity over time
Bugscope Team Ugh. I inherited a box of 35mm slides from someone. I later found out their home was infested with bedbugs. I'm glad I haven't taken the box home yet... :)
- Bugscope Team we have seen the same problem with bacteria. if we use bactericides, eventually the bacteria change so they are not affected by the bactericides
- Bugscope Team If you haven't seen the bee head yet, you should look at it. I think it is funny.
- Bugscope Team we are lucky here because when we find bugs we can catch them and use them for Bugscope!
- Bugscope Team good hair day
- Bugscope Team Hee hee. This thing cracks me up.
- Bugscope Team Those big ball-like things are the eyes.
- Bugscope Team see its mandibles?
- Teacher how many lenses does it have
Bugscope Team You should zoom in on it. It is neat.
Bugscope Team Thought you did. But we wanted it to be a surprise. :)
Bugscope Team Isn't that cool!
- Bugscope Team probably two to three thousand facets per compound eye
- Teacher why is it so hairy
- Teacher we knew that!
Bugscope Team :)
- Bugscope Team some insects like dragonflies and large hornets can have as many as 30,000 ommatidia (eye facets, or lenses) per eye
- Bugscope Team having compound eyes enables insects to see more without moving their heads
- Bugscope Team That's one of the antenna curving just off center.
- Bugscope Team Sadly, the stinger isn't visible.
- Teacher why is it so hairy
Bugscope Team the hairs have multiple purposes: some are mechanoreceptors, for touch and sensing wind currents; some are chemosensory,. for tasting the air and food and sensing pheromones; some are thermosensory, for sensing hot an cold
Bugscope Team Translation: some of those hairs help it feel its surroundings and feel its own body. Some of them help the insect smell the air and taste its food. And some of them help it feel when it is warm or cold. (Just wanted to make sure some of those scientific words were clear.)
- Bugscope Team some setae are proprioceptors, which means they are used for self-sensing, so for example the insect can tell when its leg is overextended
- Teacher Calissa wonders if a dragonfly is hairy
Bugscope Team they are not as hairy, in general, but they still have setae that attach to the nervous system on the inside of the body
Bugscope Team Calissa, last summer when I was working in my blackberry patch, I saw a dragonfly grab a huge horsefly out of the air while they were both flying. It then landed on a leaf and ate it! Yummy!
- Teacher why do grasshoppers jump
Bugscope Team their body shape makes it helpful to be able to leap away from where they are to a new place, quickly, rather than walking; some can fly as well
- Teacher why are the antenna hairy?
Bugscope Team antennae are covered with chemical receptors that help the insect smell the air and find mates, for example
- Teacher what is the claw of a praying mantis made of?
Bugscope Team it is made of chitin, which is what the exoskeleton or shell of the insect is made of. sometimes the claws and mandibles also have calcum or zinc or other minerals in them that make them last longer
- Teacher how many bees can live in a beehive(Alex)
Bugscope Team from a few hundred to many thousands
- Teacher what would the world be without praying mantis' (Liam)
Bugscope Team there would be more pesky insects because the praying mantises would not be there to eat them
Bugscope Team Liam, a huge green and brown praying mantis got into our greenhouse one fall.
Bugscope Team It liked to hang out on one of our benches. Whenever someone would walk by that bench it would run to the edge and ATTACK!
Bugscope Team It would stand on its back four legs and wave the front two around like a boxer yelling "You wanna FIGHT?!!?" It was funny.
Bugscope Team Little bitty bug against big old me. We let it alone because it was eating the occasional cockroach and other pest in the greenhouse. :)
- Bugscope Team this is the mealworm!
- Bugscope Team it is what the mealworm will grow into before it becomes a beetle
- Bugscope Team there is a parasitic wasp for every species of insect, and also for every life stage of every species of insect
- Bugscope Team parasitic wasps are often very small; they inject their eggs into insects, and the eggs turn into larvae that eat their way out
- Teacher do you have other cool stories
Bugscope Team Sure. I was just telling you one about a praying mantis when the text erased itself. Just a second....
Bugscope Team Here's another silly one. When my grandfather was a little boy in the 1920's he'd get big green caterpillars out of trees and chase the girls around, trying to put them in their hair. They'd run around screaming, and he'd just laugh. It must not have scared all of them: one of those little girls eventually fell in love with him and married him. She was my grandma. :)
Bugscope Team Actually, he wasn't much older than you all are. Though today, I imagine after seeing Bugscope nobody would be afraid of a big old caterpillar, right?
- Teacher what part of the food chain is a praying mantis?
Bugscope Team It's pretty far up there. It will eat all sorts of insects and spiders. It will even eat hummingbirds. (Seriously! Look for it online. There are pictures.)
Bugscope Team However, birds like big fat juicy praying mantises, so they get eaten too.
- Teacher We have loved this. Some of us are getting wiggly, and to top it off a little spider is crawling on the floor. Do you know how distracting that is to 7 year olds?
Bugscope Team It would be distracting to us.
Bugscope Team haha. You have done very well today, and we had a good time working with you
Bugscope Team We'd be all over it! Cool! What is that?! :)
- Bugscope Team We hope you'll consider doing this again soon. It was fun.
- Teacher Thank you for doing this for us. Many kids would recommend this for other classes.
- Bugscope Team http://bugscope.beckman.illinois.edu/members/2014-038
- Bugscope Team Thank you!
- Bugscope Team Thank you, Cody!
- Teacher Cody says thanks for helping us learn so much about bugs?
Bugscope Team You're welcome, Cody! I hope you had a good time.
- Teacher Can kids access this session at home?
Bugscope Team Yup. http://bugscope.beckman.illinois.edu/members/2014-038
Bugscope Team Before we close down, I'll cruise around a bit so there are a few more images in your database.
- Bugscope Team Daniel is going to drive around a bit to ensure that more images show up on your member page.
- Teacher ooh, crickets, ladybugs, butterflies praying mantis, stick bugs are some of our favorites
Bugscope Team Great! :) We often have these things here. So if you sign up again, be sure to request those.
- Teacher Lucas says it was awesome. We'll sign off now, but thanks again.
Bugscope Team Thanks Lucas.
- Bugscope Team Bye!
- Teacher Bye to you too!
Bugscope Team Bye. I'm crusing around a bit to add some images to your database.
- Bugscope Team That's the thing that looks like a vacuum cleaner attachment in the center between the claws. Used to help it stick to cracks and things.
- Bugscope Team Grasshopper head!
- Bugscope Team Grasshopper antenna segments.
- Bugscope Team Arolium in the center of the image.
Bugscope Team The arolium is part of the grasshopper claw preset.
- Bugscope Team Snout beetle claw.
- Bugscope Team Some sort of weevil.
- Bugscope Team That was a waving beetle of some sort. This is the tenent setae on the beetle claw.
- Bugscope Team Snout beetle head.
- Bugscope Team Part of the palp. Looks like a koosh ball. :)
- Bugscope Team Spider eyes.
- Bugscope Team We're on the bee now. Alas, the stinger is missing.
- Bugscope Team Bee claw.
- Bugscope Team Mealworm pupa head.
- Bugscope Team Looks like primordial (unformed yet) wings on the right and left.
- Bugscope Team Compound eye with lots of junk on it.
- Bugscope Team This might be pollen. Having a hard time focusing on it.
- Bugscope Team Whoops. Got a blank image there for some reason.
- Bugscope Team Close up of the spider fang.
- Bugscope Team Serrated edge of the fang, I believe.
- Bugscope Team Nope. I was wrong. Edge of a setae.
- Bugscope Team Spider head.
- Bugscope Team Darkling beetle claw.
- Teacher are you still there?
Bugscope Team Yes. What's up? I was cruising around.
Bugscope Team Did you want to drive some more?
- Teacher Miller had one last question. Do praying mantis migrate? Or what do they do in the winter?
Bugscope Team No problem, Miller! Most of the species I'm familiar with - the ones native to North America, and the big one imported from Asia - don't migrate. In the fall, the males find a female. Then the female lays eggs. Sometimes, if the female is hungry, it will eat the male, but not always. After the female lays several hundred to a thousand eggs into a nice insulated sac, the female is tired. She then dies. In the spring, new praying mantises hatch, and the process starts all over again.
Bugscope Team They do have wings, and can fly fairly short distances. But they don't migrate like monarch butterflies.
- Teacher thanks
Bugscope Team Happy to!
- Teacher that last comment was from Miller.
- Teacher i never thought bugs were so important
Bugscope Team Yes, they are! We couldn't live without them.
Bugscope Team And that's more than the bees. Even the cockroaches have a role in cleaning up stuff. They eat decaying food (among other things). If it weren't for the scavengers, we'd have lots of smell, decomposing food and plant material laying about.
- Bugscope Team We're going to close things down now. Thanks again for participating.
- Bugscope Team Bye!