Connected on 2014-11-14 08:45:00 from Leon County, Florida, United States
- Bugscope Team sample is being sputter coated
- Bugscope Team bringing sample in from coating
- Bugscope Team sample is now pumping down
- Bugscope Team in chamber
- Bugscope Team we're making presets now
- Teacher Good morning Bugscope
- Bugscope Team Good morning Ms. Karen
- Teacher What is this creature?
- Bugscope Team we are not sure
- Bugscope Team We now think it is a mayfly larva
- Teacher Is it real?
Bugscope Team yes all the insects/bugs you see today are real, dead but real
- Teacher Why does the tail have three sections?
Bugscope Team some have three, some have two. We are not sure why. Maybe it makes them more sensitive to things behind them
- Teacher We are wondering what the background material is. Also, the kids have named it Gregory.
Bugscope Team All the insects are sitting on a layer of double stick carbon tape, with a little glob of silver paint to help them stick
- Bugscope Team here is a plier ant. What does the class want to name this one?
- Bugscope Team Most ants, wasps, and bees you see are females
- Teacher What is the original color of what we are looking at?
Bugscope Team brown for the ant, black for the background
- Teacher The plier ant is Gilbert. I guess G names are popular.
- Bugscope Team everything is covered with a thin layer of metal to make them conductive, so after coating they are all the same color anyway
- Bugscope Team maybe we could call the ant Gilberte
- Bugscope Team ?
- Teacher Can we get a closer look at the mouth?
- Bugscope Team feminine form of Gilbert
- Bugscope Team these ants feed on springtails
- Bugscope Team and they catch them with these wild-looking mandibles
- Teacher Kids are interested in seeing what's on the hairs.
- Bugscope Team we mount many of the insects/arthropods upside down because there are more interesting features on the ventral side --- the underside
- Bugscope Team now we are looking at some of the setae (which is what we are supposed to call 'hairs') that are part of the palps, between the mandibles
- Bugscope Team we can see that they have sticky tips
- Bugscope Team we can also see a small mold spore in the middle that looks like a gumdrop
- Bugscope Team HI Hannah!
- Bugscope Team insects have setae (see-tee), the tiny hairs, to help them sense their environment
- Teacher Hi Hannah! :)
- Bugscope Team some of the setae are mechanosensory, for sensing wind or touch
- Bugscope Team some of the setae are chemosensory, for sensing chemical odors in the air or sensing chemicals by touch (tasting)
- Bugscope Team some of the setae are for sensing hot and cold
- Teacher Could we look at someone's eyes?
Bugscope Team let's go to the grasshopper
- Bugscope Team we can see its compound eye, to the right
- Bugscope Team compound eyes are made of many small facets, individual lenses, called ommatidia
- Bugscope Team let's go up closer
- Teacher We've named it Guy. Can we zoom in on that?
Bugscope Team awesome!
- Bugscope Team this is interesting. we see little flakes that resemble the wax we see on fruit like blueberries
- Teacher Are the flakes the metal you cover it with?
Bugscope Team Cate thinks it could be, but I am not sure.
- Bugscope Team i think it looks too thick for the silver paint i use, but it does look similar- flakey
- Bugscope Team they are most likely crystals of some sort
- Bugscope Team yes we can likely find some silver paint to compare this with
- Teacher Cross-cut potato chip or something else?
- Teacher We are wondering about the maximum magnification of your microscope. We've read that some magnify up to 2000000 x.
Bugscope Team the maximum this microscope can go is 1 million x, but we really can't see much above 200,000x.
- Bugscope Team this is a wingscale from a moth or butterfly that is on the grasshopper's leg
- Bugscope Team the ridges we see are so small that they interfere with light and produce what are called structural colors
- Bugscope Team wing scales can have both colors produced by pigment and colors produced by the narrow ridges
- Bugscope Team this is 25,000x
- Teacher Do the holes help it glide through the air.
Bugscope Team it keeps the scales light. sometimes the holes will also have pigment granules in them that looks like little rods or balls
- Bugscope Team about 30 times better than we can see with a light microscope
- Bugscope Team 50,000x now
- Teacher Can we see a spider?
Bugscope Team the closest thing we have to a spider is a tick
- Bugscope Team this is a wasp stinger
- Teacher OK. Let's see the tick.
Bugscope Team this is the tick's head, called a capitulum
- Bugscope Team you can see in the front in the middle the part that helps the hypostome stick into your skin
- Bugscope Team see how the spines go backward?
- Bugscope Team the other side of this, which we cannot see today, has finer rasping features on it like a file that help it scrap your skin
- Teacher Oh, like a fishhook
Bugscope Team exactically!
- Bugscope Team the things on the side of the head are palps, and they fold off to the sides when the central part -- the hypostome -- sticks into your skin
- Teacher The kids are interested in seeing the hypostome at the highest magnification possible.
Bugscope Team we can actually see some of the rasping portion of the hypostome here
- Bugscope Team there is some juju on it that makes it hard to image well
- Bugscope Team like fluids from someone's skin
- Teacher They've named this one Harkness.
Bugscope Team Sweet!
- Teacher My classes are switching now to a new group.
- Bugscope Team when they are young, like when this one would have been just called Hark, they have only six legs
- Bugscope Team this is one of the six claws of the plier ant
- Bugscope Team we can see that the claw, which is at the end of the arm, is resting on the abdomen
- Bugscope Team the last five or so segments of the limb are called tarsi, or tarsomeres
- Teacher Can we look at the ant's head?
Bugscope Team yes I am sorry someone wanted to talk with me
- Bugscope Team we can see from the scalebar that the ant's (Gilberte's) head is very small, less than a millimeter wide
- Bugscope Team the things on the side of the head are the antennae
- Teacher We are wondering if you have snow in Illinois?
Bugscope Team not much but we did get our first flurries yesterday. There is barely anything on the ground
Bugscope Team tomorrow the snow is supposed to stick
- Teacher Can we look at the fruit fly head?
Bugscope Team yes!
- Bugscope Team see the compound eyes, which take up much of the head?
- Teacher This group is interested in seeing maximum magnification also.
- Teacher With SEM can you see a single cell surface?
Bugscope Team yes -- if we look at the diatoms, on one of the aquatic insects, those are single-celled algae
Bugscope Team we can also see bacteria, which are single cells, and we can see mammalian cells in culture
- Teacher What's at the edge of the eye?
Bugscope Team not sure! maybe some plant fibers?
Bugscope Team i agree with it being part of a plant
- Bugscope Team let's push the magnification with the diatoms, on the head of a mayfly larva
- Bugscope Team diatoms!
- Teacher That's amazing.
- Bugscope Team this is 50,000x. Cate explained to the first group that we limit our resolution by staying at a long working distance from the sample
- Bugscope Team see how far away we are?
- Bugscope Team haha
- Bugscope Team this is the inside of the specimen chamber, which is under vacuum
- Teacher Do you know where to go to find a pollen grain?
Bugscope Team we might go to see if there are any on the wasp, but we did not see any earlier
- Bugscope Team Mr Rogers
- Teacher Kids think this should be on NetFlix\
Bugscope Team haha
- Guest It should!
- Teacher Are those fibers part of the wasp?
Bugscope Team fungal hyphae, spider web, plant fibers
Bugscope Team the spines are part of the wasp
- Teacher What's up with the holes?
Bugscope Team those are not usually holes, but this wasp's antenna is very dry, and the inner components have shrunken back. it gives us a rare view of the antenna
- Bugscope Team the spines with the holes in the ends of them are likely chemoreceptors that help the wasp pick up scents in the air
- Bugscope Team there is also some dried gunk on the surface
- Bugscope Team the long oval holes are where the placoid sensillae have shrunken away from the surface
- Teacher Wow, we feel special.
Bugscope Team kind of cool
- Teacher Can we see the tick next?
Bugscope Team yes!
- Bugscope Team this is one of the tick's eight claws
- Bugscope Team ticks will climb up long grass with their legs sticking up in the air, waiting for something to come brush by them
- Teacher Yes, some of our students had that experience on a field trip this year.
- Bugscope Team this is a sid view of the Haller's Organ, which is on one of the forelegs and helps the tick sense CO2 when we breathe.
- Bugscope Team side view...
- Bugscope Team if they get on you on your leg, they will make a slow climb up towards usually your head
- Guest why do they climb to your head?
Bugscope Team they don't always, but it is likely because that is the source of the CO2 that attracted them to you
- Bugscope Team it's warm there maybe. I have had one be happy in my armpit
Bugscope Team haha
- Bugscope Team this is the opening of the mouth
- Teacher Can we look at the mold spore again.
Bugscope Team yes!
- Bugscope Team the mold spore is about 1 micrometer (1 micron) wide. that is a thousandth of a millimeter and a millionth of a meter
- Teacher We see the spore, what is that in the foreground?
Bugscope Team those are setae with sticky tips that help the ant secure and also taste its prey, which are springtails
- Bugscope Team it is similar looking. Sometimes it is hard to tell them apart
- Bugscope Team mold spores are usually smaller than red blood cells
- Teacher That looks like a red blood cell
Bugscope Team yes it does -- it is collapsed like one. red blood cells are usually smoother, and they are 8 to 14 microns in diameter
- Bugscope Team bird red blood cells still have nuclei, but mammalian blood cells have lost them
- Teacher We love bugscope. Thanks so much for having us. Some students are interested in their own session. I guess they will have to become teachers to do that.
Bugscope Team if you watch the Bugscope homepage you can always log in as a guest when we are running a session
Bugscope Team a few years ago we had a student named Aditi who would log into other sessions and help us out
Bugscope Team she was very nice
- Teacher Great idea. Oh I had a student named Aditi a few years ago also...
Bugscope Team really!
Bugscope Team we wish she would come back sometime to say Hi
- Teacher We appreciate your time. The kids have to tend to a plant growth experiment now.
Bugscope Team Thank You!
- Bugscope Team Bye!
- Bugscope Team Bye Hannah!
- Bugscope Team awesome! I am horrible with plants, so good luck
- Guest Thank You! This was so interesting! Bye!
- Bugscope Team Yay! Over and out!