Connected on 2009-04-20 16:15:00
from , IL, US
- 3:48 pm
- Guestthei am a guest trying t view session but i cant see anything i saw the microscope earlier now it just black.
- Bugscope Teamcan you hit refresh (F5)
- Bugscope Teamsee if that fixes it
- 3:54 pm
- 3:59 pm
- 4:05 pm
- Bugscope Teamhello, welcome to bugscope!
- Bugscope Teamwe are setting up presets for the session, we'll be ready by 4:15
- TeacherHi. This is Dr. Clishem
- 4:10 pm
- Bugscope Teamhi dr. clishem, welcome to bugscope
- TeacherAre you running through the presets now?
- Bugscope Teamyep, we are almost done
- Bugscope TeamHey what up Dr C?
- TeacherAs you can see, a lot of my class logged in as "guest". Should they log out and log back in as "student"?
Bugscope Teamno, guest is fine, no functional difference really
- Bugscope Teamno either way is fine, really
- Bugscope Teamwe can confer control to whomever
- Bugscope Teamok, we are done with presets, you can now control the scope and we are ready to start the session
- Bugscope Teamyou wish
- 4:16 pm
- Bugscope TeamDude we are ready to roll.
- Bugscope Teamcool!
- TeacherSorry, I was lecturing a bit. What a snooze.
- Bugscope Teamno problemo... ;)
- TeacherI logged in as teacher. I don't see the presets. Wait. There they are. They just appeared!
- Bugscope Teammagic
- Bugscope Teamsometimes you may need to hit refresh (F5), that should always reload anything you might be missing
- Bugscope Teamthis is a digger wasp head, and body now
- Bugscope TeamTony's been doing this for a long time.
- Bugscope TeamOOF
- Bugscope Teamnotice the scale bar in the bottom left of the image, that shows the size of what we are looking at. keep in mind that 1 um = one micron = one millionth of a meter
- Bugscope Teamsorry had to focus
- Bugscope Teamlotta juju on the eye
- Bugscope Teamthe compound eye is made up of hundreds, sometimes thousands of individual facets, called ommatidia
- Bugscope Teameach ommatidia has a lens in it
- 4:21 pm
- Bugscope Teamthose are the hexagon things
- Guestwhat is all the stuff on the eye
- Bugscope TeamCaity there's a lot of dirt,mostly
- Bugscope Teamthis moth was caught in a trap so it is most likely stuff from other insects and dirt
- Bugscope Teamsome scales from other insects
- Bugscope Teami meant the ommatidia are squares. ommatidia = plural of ommatidium
- Bugscope Teamsometimes we'll see mold spores, bacteria, brochosomes...
- Bugscope Teamhmm, well they are still hexagons, but just barely.... wow, very cool
- Bugscope Teambrochosomes are usually a few hundred nanometers in diameter, and they look like little soccerballs
- Bugscope Teamso each ommatidium is about 11 microns = 11 millionths of a meter
- Bugscope Teambrochosomes are produced only by leafhoppers, but you find them on other insects/arthropods they've, like, fraternized with.
- Bugscope Teamthis is the head of a digger wasp
- Bugscope Teamthe last four or five segments of the limbs, the distal segments, are called tarsi, or tarsomeres
- 4:26 pm
- Studentare we loooking at the stinger?
Bugscope Teamnot yet, that would be at the very end. I did look earlier for a stinger, but i didnt see one
- Studentdoes the stinger break off when they sting?
Bugscope Teamthey do not break off for wasps. They do for bumblebees
- Guestwhat was that then?
- Studentso what are we looking at?
- Bugscope Teamstingers are modified ovipositors, and sometimes the stinger is also an ovipositor
- Bugscope Teamhere comes the end of the abdomen
- Studentwhat is an ovipositor?
- Bugscope Teamthat was the narrow part of the body between the thorax and abdomen
- Studentwhat is an ovipositor?
- Bugscope Teama digger wasp has a long, thin extended abdomen
- Bugscope Teamovipositors are egg-laying tubes
- Studentso is this a female wasp?
- Studenti assume that wasps are able to sting and not die?
Bugscope Teamyes that's right. Actually I was wrong before, and it's the honeybee that dies after stinging, not the bumblebee. They die because a muscle attached to the stinger comes out as well that pumps and stinger further into its victim and also pumps more venom in the site
- Bugscope Teammany parasitic wasps, which are often smaller, inject their prey with the wasp's eggs. for example if the prey is a caterpillar
- GuestThe the callipillar have wasp babies?
- 4:31 pm
- Bugscope Teamyes wasps are able to sting repeatedly and live; bees leave their stinger in you, and it has a sort of outboard motor that continues to pump the toxin into your skin
- Bugscope Teamyeah the caterpillars have wasp babies, but their insides are eaten by the babies -- so the caterpillars don'
- Bugscope Teamt survive
- GuestWhat part is this?
- Studentthese look like hairs - are they?
Bugscope Teamthey are called setae (see-tee), and they help the insect to sense it's environement
- GuestWhat is the spikey thing sticking out?
- Bugscope Teamthe miscle attached to the stinger is what I was saying is kind of like an outboard motor
- Bugscope Teammuscle
- Bugscope Teamenvironment i mean
- Bugscope Teamgood job focusing Dr Clishem
- StudentWhat other part will be good to look at?
- Bugscope TeamAnshon we don't know what that is.
- TeacherYeah, right, I'm a pro.
- GuestIs there any other part of the wasp that would be good to look at?
- Bugscope Teamsometimes the antennae are nice to look at
- Bugscope Teamthose setae stick through the insect exoskeleton, to nerves underneath. some setae are mechanosensory and others can be chemosensory, so some of the hairs (setae) are used for smelling the environment!
- Bugscope Teamor you can always go to another preset...
- Bugscope Teamedge of the world
- Bugscope Teamgo south
- TeacherLet's go to Charlie Brown.
- Bugscope Teamhmm, seems like you need to clikc on the image again to stop moving?
- 4:36 pm
- TeacherAsleep at the wheel
- Bugscope Teamthe ant is fun because we don't usually see ants' heads look so round
- Bugscope TeamTony!
- Studentwhy is this ant's head so round? or is that how they are supposed to look?
Bugscope Teamwe don;t know what kind of ant this is, but it is probably found like this among this particular species
- Bugscope Teamdr. clishem, when using click to drive, make sure you click the image again to STOP moving. i think we are stuck in a moving state
- Bugscope Teamclick Done on the Driving thing
- TeacherI don't know what's happening!
- Bugscope Teamokay I did that.
- TeacherAh, you took away my car keys!
- Bugscope Teamare you in click to drive mode?
- TeacherMaybe.
- Bugscope Teamwe are trying to fix the scope, whenever we set it to a preset it starts moving again, so i'm wondering if you are in click to drive mode and need to click on stop
- Bugscope Teamok, now we are good
- Bugscope Teamyou can try to click on a preset now
- Bugscope Teamback to the extraordinarily round ant head
- Bugscope Teamah, this is the charlie brown ant head. so named because it's a circle head, like CB
- Bugscope Teamyeah don't know what happened. aliens I think
- GuestWhat type of ant is this?
- Bugscope TeamAnshon we don't know for sure.
- Bugscope Teamyou can see to either side of the antennae are small areas of compound eyes
- StudentWhy is it called Charlie Brown?
Bugscope Teamwell, i was being silly and called it that because it's a round head. young students sometimes like it when scientists fool around a little bit while learning. not that you all are young students...
- Bugscope Teamwe named it after one of the guys who works here
- TeacherGet rid of that click to drive mode.
- 4:41 pm
- Bugscope Teamthis is the ball-and-socket joint at the antenna
- Bugscope Teamthe trick with click to drive is clicking once to drive and once to stop
- Bugscope Teambut sometimes it seems to have its own agenda
- Guestare the antennae coming out of the nose?
- Bugscope Teama great alternative to moving around is to use click to center. i prefer that myself
- TeacherThat's awfully kind of you to say that. I got a little too cocky.
- GuestWhat part of the ant is this?
- StudentIs that the mouth?
Bugscope Teamyep, with two things in front of it, chompers
- Bugscope Teamthe thing to the bottom of the image is paper
- Bugscope Teamto the bottom you can see the paper strip this ant was attached to
- Bugscope Teamfor the mouth you can see it has a hinged jaw covering it
- TeacherShould we hand over the controls to someone else. Daddy's getting tired.
- Bugscope Teaminside the hinged jaw would be palps (some are sticking out at the bottom) and a tongue
- Bugscope Teamsure, who wants control?
- Bugscope Teamwe normally want the teacher to tell us who to give control to, then we'll do that
- Bugscope Teamotherwise we'll have 10 kids asking for control all at once
- 4:47 pm
- TeacherThey are all very shy. Not like fifth graders.
- Bugscope Teamit's impossible to break the scope, so please don't be shy
- Bugscope TeamViolet has control now.
- TeacherGive the controls to Mari.
- Bugscope Teamnice!
- Bugscope Teamok, mari has control now
- TeacherViolet is friends with Charlie Brown. She can have controls after Mari.
- Bugscope Teamok, just let us know when
- Bugscope Teammari don't be shy, ah, there ya go, nice!
- Bugscope Teamthis is an insect scale on the eye of a moth
- Studentwhat are those things that look like leaves?
Bugscope Teamthose are scales of the moth
- Bugscope Teamzooming out is a great way to get an idea of exactly what we are looking at
- Bugscope Teamnow you can see there are boatloads of scales,
- Bugscope Teamsee the tongue, all coiled up?
- Guestwhat should we look at?
- Guestwhat should be look at?
- Bugscope Teamthe minimum resolution is about 40X, so we can't go any less than that. the max is about 40,000x for bugs. although the scope can actually do up to 800,000x
- Bugscope TeamSana1 and Salma I think you should try another preset.
- Bugscope Teamask mari to click on a preset
- Bugscope Teamfind a preset that looks interesting, and then ask mari to click on it. #11 is wendy's salt
- Bugscope Teamnice!
- Bugscope TeamMoths are often difficult to image because of all the scales, which are not very good at channeling electrons away.
- Guestwhose wendy?
Bugscope Teamlike the fast food restaurant
- Bugscope Teamgood job
- Studentis this table salt? rock salt?
- Bugscope Teamwendy's was dave's daughter, this is salt from the burger joint
- 4:52 pm
- Bugscope Teamwendy's salt, for some reason, it very cubic
- Bugscope Teamwe like this kind of salt because it has these sort of Aztec patterns in it.
- Bugscope Teamit is not just like a boring cube
- Guestcool!
- Studentwow
- Bugscope Teamnot a bug, really, but kids can ID with it well
- Bugscope Teamthe holes we think are due to another chemical -- an anticaking agent. but we really don't know what it is.
- TeacherPlease let Violet drive now. Afterwards, maybe Peppermint Patty.
- GuestGive VIolet the controls please!
- Bugscope Teamviolet has control now
- Bugscope Teamgot 'em!
- Bugscope Teamgo ahead violet
- Bugscope TeamNisa I guess we could be spreading rumors, and we don't really know why the salt is like that. But it looks cool.
- Guestits going really slow
Bugscope Teamhmm, sometimes network slowness can ause lag, what are you trying to do?
- Bugscope TeamWe like it that the salt has that appearance.
- GuestNo more salt for me!
- Bugscope TeamViolet it may be that the Internet connection is draggin'
- Guestwhat part of the lady bug is this?
- Bugscope Teamum take the mag down like one click
- GuestWhat part of the lady bug is this?
- Bugscope Teamif it's lagging up, stay away from "click to drive" and "focus". both those functions use live video, whereas all the others use single images so less bandwitdh
- 4:57 pm
- Bugscope Teamyeah okay where we wanted to be is above. inside the palp.
- Studentwhats the palp
- Studentwhat kind of lady bug is this?
- Bugscope Teamthis is one of those Asian ladybeetles that bites, sometimes
- StudentDo all bugs have Setae hairs?
Bugscope Teammost do yes, it's interesting in that you don't really see those hairs with the naked eye. only when you put the bugs into a scope do you see these things.
- StudentWhat is the palp?
- Bugscope Teampalps are like little limbs around the mouth that are used to manipulate and also taste food
- Studentwhat types of food do they eat?
Bugscope Teammostly plant matter
- Bugscope Teamnow we can see the tarsi, and you can see the pads on the tarsi with lots more setae -- tenent setae
- Guestwhere are the tarsi?
Bugscope Teamtarsi are part of the leg segments, i think
- Studentwhats the wavy thing on the body
- Bugscope Teamhmm, what wavy thing? i'm not sure?
- TeacherPlease let Sana1 drive.
- 5:02 pm
- Guestwhat is the background? the tiny dots
Bugscope Teamthose dots in the background are bubble in the double sided tape that the insects are adhered to
- Bugscope Teamsana1 is in control!
- Bugscope Teamwatch the speed limit :)
- Bugscope Teamcool, check out this claw, nice driving sana1!
- Bugscope Teamnow try focus, if focus + doesn't work, then try focus -
- Guestwhy is the claw shaped like that?
- StudentWhy is the claw shapped like that?
- GuestWhat is the "claw" used for?
- Bugscope Teamwell, it's shaped to help manipulate it's environment, and the claw can retract via the joint in the middle of it
- Bugscope Teamthe claw is used to grab onto things: food, leaves, etc
- Bugscope Teamah, these pad like things are called tenent setae
- Bugscope Teamvery cool little things they are: they help insects "stick" to walls and such
- 5:07 pm
- StudentWhat are we looking at now?
- Guestwhat is the spiracle all about?
- Bugscope Teamthis is a spiracle, used to breath, the air
- Guestwhat is a true bug?
- GuestWha tis a true bug?
- Bugscope Teamumm, i'm not sure, some kind of species, scott knows for sure
- Guestso the inside of the spiracle is shiny? or is it just light?
Bugscope Teamthat's probably just charging from the electrons inside the scope?
- Bugscope Teamthis is a hemipteran, a true bug
- Bugscope Teamone of the things that makes true bugs true bugs is their piercing mouthparts
- Bugscope TeamActually Annie defended last week, has her PhD now
- Bugscope Teamway cool annie!!!
- Guestwhat part of the true bug is this?
- TeacherBack to the bugs
- Bugscope TeamI am sorry I had visitors here in my office
- Bugscope Teamthis looks like the tail end: the abdomen
- Bugscope Teamthis is the abdomen
- Bugscope Teamyou can see the folded wings
- 5:12 pm
- Guestvery cool! the spiracle is so tiny
- Bugscope Teamtake the mag down a little now
- Bugscope Teamplease
- Bugscope Teamcool!
- Bugscope Teamthere's the pollen grain
- Bugscope Teamto the left
- Bugscope Teamway cool
- Bugscope Teamis that a brochosome too?
- Bugscope Teamwait, can't be, the res is too low for brochosomes
- Bugscope Teamthese are tarsomeres -- the tarsal segments of the leg
- Bugscope Teamokay now if you use click to center t
- Bugscope Teamyou can d'oh
- Bugscope Teamcan I drive for a sec?
- Guestsure we want to see the first preset
- Guestthank u
- Bugscope Teamthere it is
- Bugscope Teamdon't sneeze!
- Studentwhy are some people allergic to pollen, and some are not?
- Bugscope Teamwe could see bacteria if there were any
- Bugscope Teamsome people are just more sensitive, and there are lots of pollens
- Studentthats okay, as long as i have benadryl, it doesn't matter!
- Bugscope Teamheh
- 5:18 pm
- Studentthanks guys!
- Studentthank you!
- StudentThank you for your time? Have a great night!
- Bugscope Teamthank you!
- Guestthanks
- Guestbye. thanx. This was interesting!
- Bugscope Teamdr. clishem, remember that your chat and images from this session are all saved to your member page: http://bugscope.beckman.uiuc.edu/members/2009-038
- Bugscope TeamThank You!
- Studentthanks for a great class
- Bugscope Teamyou can visit that member page anytime to review the material from today, all chat and images are saved forever on that site
- TeacherHey, real quick guys. My son is trying to decide between U of I and Lake Forest College for a degree in Communications. Any insights? Lake Forst is giving him $$$$$.
- Bugscope TeamThanks, Nisa
- Bugscope Teamhmm, i don't know much about lake forest, but UI has a real good comm school, right scott?
- Bugscope TeamOf course we like U of I.
- Bugscope TeamEspecially because once you get here you have a lot of choices -- you might find that communications is not really your thing.
- Guestdo any of these bugs have a parasite?
- Bugscope Teamlinguistics is big here
- Bugscope TeamSana1 we did not find any parasites today
- TeacherOK. I figured. He likes U of I too. I think that will be his decision.. Thanks again. I will do the feedback as requested.
- Bugscope Teamwell, i don't know about parasites, but sometimes we find mites on the insects
- Bugscope Teamvery nice session today, well done!
- Bugscope Teamwait, is a mite a parasite?
- Bugscope TeamI think you'd have a better chance in the big world having gone to school here, compared to there.
- Guesti have always had this question... do any bugs HAVE parasites on them>
- Bugscope Teamannie should be here... :(
- Bugscope Teamlike getting a job
- 5:23 pm
- Bugscope Teamyes, by definition a mite is a parasite, and i've seen many mites on many insects before
- Bugscope TeamSana1 mites are parasites in a way, and parasitic wasps as we mentioned earlier inject their eggs -- soon to be larvae -- into prey caterpillars
- Bugscope Teamand the Varroa mite, for bees...
- Bugscope Teamsometimes we'll see an insects with lots of mites on them...
- Guestdo mosquitoes have a parasite?
- Bugscope Teamwe have not see parasites on mosquitos, but they could have gut parasites as well
- Guestwould that be inside their bodies?
- Guesti am sorry what are facets again?
Bugscope Teamfacets are called ommatidia, a single one is named ommatidium
- Bugscope Teamyeah the parasites would be inside the body, as parasites often are
- Bugscope Teameach ommatidium has a lens in it
- Bugscope Teamthese are interesting because they have little bristles between the ommatidia
- Bugscope Teambut the lens is fixed in one direction, unlike our eye which has a socket so the lens can move around
- 5:28 pm
- Bugscope Teamthe bristles are mechanosensory -- they sense the wind speed
- Bugscope Teamthe wind direction
- Bugscope Teamso what's better, a movable socket or a compound eye with 100's of fixed lens's arranged in a 180 degree area?
- Guestthey have so much detail to them... its amazing, this creation
- Bugscope TeamRoman where are you?
- Guestcan you observe the cells through the electron scope?
- Bugscope Teamwe are seeing them now
- Bugscope Teamthose individual dots are much smaller than cells
- Bugscope Teamwe do have transmission electron microscopy as well -- TEM
- Guestoh really? i thought they were the cells
- Bugscope Teamso we can see ultrathin sections of cells
- Guestright
- Bugscope Teamthose are usually 8 to 14 microns in diameter
- Bugscope Teambacteria -- the bacilli -- are usually about 2 microns long
- Guesti see
- Bugscope Teamboy i learn something every day, i didn't know some cells can be as big as 8-14 microns.... interesting
- Bugscope Teamthose tiny dots were nanometers in diameter -- they were parts of cells
- Bugscope Teamvery cool
- 5:34 pm
- Guesti thought the paper strip looked totally cool under the scopre as well
- Bugscope Teamoften we catch them manually and then freeze them, but many of the insects we looked at today came from a collection, and they were gassed in some way
- Bugscope Teamyeah the paper -- cool to see the cellulose fibers
- Bugscope Teamtry http://bugscope.beckman.uiuc.edu/help for lots of info on how to do an entire bugscope session, from prep all the way to completion
- Bugscope TeamI just drove us to the aphid head
- Bugscope Teamyou can see its eyes
- Bugscope Teamon either side
- Bugscope Teamand the piercing mouthparts
- Bugscope Teamthese were specially dried so they wouldn't shrivel
- Guesti see
- Bugscope Teamyou guys we are going to have to pack up and leave, let the next people get on the 'scope
- Bugscope Teamwe share the microscope with people doing their own research
- Bugscope Teamthe scope is used by researchers here at Beckman, for things other than looking at bugs
- Guestsure... thank you so much for this session
- Bugscope Teamyou are welcome!
- Bugscope Teambut we have very much enoyed this session, and thank you Sana1
- Bugscope Teamenjoyed...
- Guestha.. sound kinda like annoyed
- 5:39 pm
- Guesti am joking! this was great!
- Bugscope Teamheh, well he certainly meant enjoyed, this was a good session, very good
- Guesti am sure the questions get redundant
- Guestthank you for all your help!
- Bugscope Teamno problemo
- Bugscope Teamok, session locked, rxl disabled, session disabled, closing down now
