Olive-Mary Stitt
Session 2013-004

Application

School

Class

Project

Miscellaneous

Transcript

Connected on 2013-04-17 13:20:00 from Cook, Illinois, United States

• 12:27 pm
• Bugscope Teamsample is pumping down

• 12:35 pm

• 12:41 pm

• 12:47 pm

• 12:52 pm

• Bugscope Teamnow we're making presets
• Bugscope TeamHello Mrs N!
• Bugscope TeamWelcome to Bugscope!
• Bugscope Teamwe're just finishing the presets

• TeacherHi, Scot! Thanks for preparing our session! The students are really looking forward to meeting you and our bugs!
• Bugscope Teamsuper cool
• Bugscope Teamwe are ready
• TeacherMy students will all arrive around 1:20.
• Bugscope Teamyou may drive now if you'd like
• 12:58 pm

• Bugscope Teamno as long as you're comfortable driving -- that's the trick

• Bugscope TeamHello Nick!
• Bugscope Teamum Bye Nick
• 1:04 pm
• TeacherI think I've got the basics...I am going to get organized, get the students situated, and be back at 1:20. Thanks, Scot!!
• Bugscope Teamsuper cool
• 1:10 pm

• 1:15 pm
• Bugscope Teamhello students!
• StudentHello! This is Lizzie! We will have 4 computers and 17 students.
• Bugscope TeamSounds great!
• Bugscope Teamthis is a cool place right here
• Bugscope Teamthis is where a butterfly's chrysalis connects to a twig
• StudentHi this is Lauren we are waiting for our freinds
• StudentI am VERY excited! We are waiting for other students!
• Bugscope Teamthe 'stem' of the chrysalis is to the left
• 1:21 pm

• Bugscope Team(me driving, for a sec)
• StudentHi mason we are glad you logged in from home.
• Bugscope Teamthis is sweet
• Bugscope Teami've never seen this before
• Bugscope Teamwe were trying to figure out how the larva wrapped the silk around the stem
• Bugscope Teamhmm
• TeacherOK, we are all set!
• Bugscope Teamso Mrs N you have control of the 'scope

• Guestare you sure the silk is around the stem?
• Bugscope Teambut we can confer control to anyone you'd like

• StudentWhat are we looking at ?
• Bugscope Teammaybe they set it before becoming a chrysalis by crawling around and laying the silk?
• Bugscope Teamthis is the tip of the chrysalis, where it attaches to a plant
• Bugscope TeamMason if you have another idea -- we're open to it. the stem of the chrysalis is to the lower left
• 1:26 pm
• StudentHello, I'm Rob.
• Bugscope Teamthe tilted T portion we don't see now is the plant stem
• Bugscope TeamHi Rob!
• StudentThat is so interesting! From Lizzie

• Bugscope Teamit's really fun for us, Lizzie

• Bugscope TeamMrs N are the presets not working for you?
• Bugscope Team'cause I did this one...
• StudentWhat is that?
• Bugscope Teamhello Alex an Jacob!
• TeacherIt's moving slowly..but it works.

• Bugscope TeamThis is an earwig -- a female earwig

• Bugscope Teamoften they have mites on them but we did not see any earlier
• Bugscope Teamyou can see the compound eye to the upper right

• StudentThis is so cool.
• StudentWow! how do you know its a female earwig?
• Bugscope Teamit's kind of under the 'knee'

• Bugscope Teamthe way the pinchers bow are are straight is how you know it's a female or male
• Bugscope Teamthe cercopods -- the pincers -- of females are close together, and those of males are curved and further apaer
• Bugscope Teamapart

• Bugscope Teamthe background we see now is doublestick carbon tape with silver paint on it
• TeacherCan you drive for us? I think you will go quicker.
• StudentWhat is the cercopods and what do they do?

• Bugscope Teamthese are the cercopods
• 1:31 pm
• Bugscope Teamif you bother an earwig, it can whip around and pinch you with these
• StudentIs this the back of the earwig/
• StudentHi Bugscope! This is Elizabeth. Why do you put the carbon tape on it?
• StudentAre those the pincers or the mouthparts?
• Bugscope Teamkind of like wire strippers
• Bugscope TeamThe are used to catch prey, and also for defense
• Bugscope Teamthese are the pincers
• Bugscope Teamthis is the ventral side -- the 'front'
• Bugscope Teamthey're at the backend of the critter
• StudentWhats the critter
• StudentAn earwig.
• Bugscope Teamthis is an earwig

• Bugscope Teamthe carbon tape is what the specimens stick to, and the silver paint helps them stick as well as helping to ground them so they do not charge up with electrons
• Guestwhat are the pinchers made out of?
• StudentThanks!
• Bugscope Teamthe specimens we're looking at are in a vacuum chamber

• StudentWhat does a vacum chamber do ?

• StudentAnd I used to think it was a flea.

• StudentThe grasshopper, I mean.

• Bugscope Teamwe beam electrons at the sample in order to be able to collect images of the specimens, and in order for the electrons to pass smoothly through space they need to be in a vacuum -- much like how a lightbulb works
• Bugscope TeamThis here is a close up of the compound eye.
• 1:37 pm

• Bugscope Teamvacuum chamber is where the insects are sitting right now. We have to have them in a vacuum in order to hit them with an electron beam and get a good image

• Bugscope Teamyou can see the ommatidia
• StudentHow high magnifacion can we get?!
• StudentWhat is the ommatida
• Bugscope Teamommatidia are the individualm lenses of the compound eye
• Bugscope Teamthe ommatidia are the individual units that make up the compound eye
• StudentHow many lenses are in the compound eye
• StudentI never knew that.

• Bugscope Teamthey work together to give a complete image of what the insect is seeing
• Bugscope TeamMason we need to coat them (we use gold-palladium rather than just gold) so that when we beam electrons at them they do not charge up

• Bugscope Teamso what insects see would be similar to something like a mosaic, or a really pixellated image

• Bugscope Teamthe number of lenses in a compound eye really depends on the insect

• StudentWould the bugs be worth a lot of money because they are coated in gold? :)

• Studentprobably no because its paint
• StudentWhat is a seta?
• Bugscope Teamfor certain insects like certain ants, they won't have too many facets, since they rely on other sense more heavily, in particular taste and smell
• Bugscope Teamthe gold or gold-palladoium coat is only nanometers thick, so we just throw the bugs away when we're done

• StudentCool!
• Bugscope Teamgold-palladium sorry I am not typing so well
• Bugscope Teamfor insects like a dragonfly, which rely heavily on its sight, their compound eyes have lots and lots of facets
• Bugscope Teamseta are what the tiny things that look like hairs are called
• StudentHow does the spiracle work?

• Bugscope Teamsetae are the sensory hairs that you can see on an insect

• StudentHow big is the spiracle??
• Bugscope TeamA dragonfly can have 30,000 ommatidia in one eye

• Bugscope Teamthey help the insect sense their environment and themselves as they can't feel anything through their tough exoskeleton
• 1:42 pm
• StudentWOW
• Bugscope Teamspiracles open and close to allow for gas exchange
• StudentWhat are the flanges in the spiracle?
• StudentWhat is the thing in the spiricle ?

• Bugscope Teamspiracles can be opened or closed by most insects/arthropods, so it is like they hold their breath
• Bugscope Teamthe spiracle is attached to a long trachea that runs along the body. That is how it supplies oxygen to its cells

• StudentWhats a trachea
• Bugscope Teamthe trachea system in insects is connected to each cell

• StudentThat is so interesting! I don't think I ever would have known that!

• Bugscope Teamthe spiracles have a kind of a filter at their opening so that the insect does not accidentally suck in a bunch of dirt or pollen or mold spores
• Bugscope Teamunlike in us, where oxygen is brought to different areas with the aid of the circulatory system (heart/blood)
• Bugscope Teamso the trachea is a kind of tube
• Bugscope Teamtrachea is just a term that is given to the series of tubes in an insect that brings gas to and from each cell
• Bugscope Teamin people the trachea is the windpipe
• StudentThis is Danielle. Are you trying to find a way to get pictures in color?

• StudentHow sharp is the stinger
• Bugscope TeamDanielle because we are using electrons, which are super small, we collect images as grey scale, as signal; that is, the electrons are much smaller than the wavelengths of visible light
• StudentIs the stinger smooth ?? or bumpy??
• Bugscope Teamso we cannot see color because we are using something smaller than color as a probe

• Bugscope Teamthe stinger is relatively smooth but has cutting barbs on it

• StudentWhat is that gap?
• TeacherCan you show us where the barbs are?

• 1:47 pm
• StudentThis is Hannah. What is the splitting line in the middle of the stinger?

• Bugscope Teamnow one of the barbs is in the middle of the view

• TeacherLooks good! Thanks!
• Bugscope Teamthe barbs are recurved to help the stinger hold into the skin that it pierces, or into an insect if it is stinging an insect
• Bugscope Teamkind of like how a fishhook works
• Bugscope Teamnow we can see that the stinger is about 1.5 mm long
• StudentWhat's the hollow part?
• StudentThis is Lizzie. Is it hard to drive the Bug scope and was it harder on your first day?
• Bugscope TeamLizzie we just gave you control.

• Bugscope Teamsometimes there are lag issues - like it takes a long time from when you clicked on a command until it shows up on the screen
• StudentThis is Rob.
• Bugscope Teambut it is really easy to use, and in person it is super easy
• Bugscope TeamHi Rob!
• Bugscope TeamLizzie you can click on any of the presets if you would like; or whoever is presently Student 1...
• StudentOops, scratch that. I accidentally hit enter.

• Bugscope Teamgnarly

• 1:52 pm
• Bugscope Teamit's a bouquet of mold spores

• Bugscope Teamso pretty!

• Bugscope TeamStudent 4 we are good!

• StudentOkay!
• Bugscope TeamI'm sitting at a computer next to the microscope, so I can slide over and tweak the focus and centering on the 'scope when it is helpful

• StudentAre those hairs

• Bugscope Teamthey are setae, which are much like hairs, but they're often sensory hairs

• StudentWhat r those things in the holes
• Bugscope Teamthose are also for sensory purposes
• Bugscope Teamthey're just a different shape than the setae
• StudentThis is really cool getting to drive. I am giving Elizabeth control now!
• Bugscope Teampossibly for olfaction (smell)?
• Bugscope Teamgenerally, they are chemoreceptors

• 1:57 pm
• StudentDoes this help them survive?

• Studentwe switched, its charlie
• Bugscope Teamchemical communication/signalling is very important in the insect world
• Bugscope Teamhi charlie
• Studentwhats an arolium?

• Bugscope Teamit's a sticky pad of sorts

• Bugscope Teamhelps the insect walk on certain surfaces

• Bugscope TeamJoseph is an entomologist, Cate is a physicist, and I am a biologist
• StudentNow it's Connor.

• StudentWhat is a spiracle on a chrysalis?
• Studentwhat are the hair like things?
• Bugscope Teamthese are spiracles that the larva breathes through as it metamorphoses into a butterfly
• 2:02 pm

• StudentBy the way its Avery
• Bugscope Teamin this case the hairlike things are part of the filtering apparatus of the chrysalis

• Bugscope Teamthe hairs are actually microsetae, which are like mini hairs

• Bugscope TeamHey Avery!

• Studentcool!
• Bugscope Teamthis, now, is what happens when the electrons are not shed by the conductive coat we put on the sample

• Bugscope Teamthe microsetae are charging up with trapped electrons

• Bugscope Teamthis is now quite rare salt; soon we will not have any more
• Bugscope Teamwendy's?

• Bugscope Teamyes from Wendy's but not what they use currently
• Bugscope Teamyeah like the fast food restaurant

• Studentwhats the smallest thing you have ever looked at under the microscope?

• StudentThis is Lizzie, what is the most rare bug that you've ever seen through the microscope

• Bugscope Teami'm not sure about the rarest insect I've seen. Maybe scott knows
• Studentawesome!

• Studentwow.

• 2:08 pm

• Bugscope Teamonce we had a fly from Israel that was one of six known in the world
• Studentwhat are the balls on top of the head?
• StudentDo you mean the species only had six?
• Bugscope Teamthose are the bases (the pedicels) of the antennae of the rolypoly
• StudentOh.
• StudentI can't belive thats the face of the cute bugs i see on the playground
• Studentwhere are the eyes
• Bugscope Teamthe entomologist we were working with was able to find only six of those particular fly; certainly there had to be more

• Bugscope Teamyou can see one of the eyes, to the left, only barely
• Bugscope Teamit's centered on the screen now
• Bugscope Teamsee those domelike bumps?
• Bugscope Teamthose bulbous things
• Studentyeah we do
• Bugscope Teamthey are like a small bunch of grapes
• Bugscope Teamthose are ommatidia
• Studentohhhhh
• Bugscope Teameach compound eye has only six or eight ommatidia
• Bugscope Teamroly polies are not insects; they're crustaceans
• TeacherSince we are nearing the end of the session, is there anything else you recommend that we view?
• 2:13 pm
• Bugscope Teamthe family name is Armadilladiidae.
• Studentwhat are those scaly things in the backround?

• StudentThanks we
• Bugscope Teamdid you see the yellowjacket head?
• Bugscope Teamthey roll up
• Bugscope Teamlike an armadillo
• Student were wondering
• Studentnice
• Studentno
• Bugscope Teamyou can see that it has ocelli -- simple eyes -- on the top of the head

• Bugscope TeamStudent 3 I am sorry I moved the stage and am not sure what the scaly things were.
• StudentWhat are simple eyes
• Studentwhat are simple eyes

• Bugscope Teamthey help the insect detect rapid movement nearby
• Bugscope Teamthe thing that looks like a living comma is one of the compound eyes

• Bugscope Teamand may help in circadean rhythm (day/night cycle) regulation
• Bugscope Teamsimple eyes are the ocelli Joseph is referring to

• StudentWhat is the strig thing
• Student*string
• StudentWhat are the bumps on the eye.

• StudentCan bugs get bugs and if so how big are they?
• Bugscope Teamthe string thing is some kind of fiber, perhaps a fungal hypha -- the stem of a fungus
• Studentthank you!!!!!!!!!!!!
• Bugscope Teamthe bumps on the eye are the ommatidia, the individual units of the compound eye
• Bugscope Teamthe bumps are ommatidia
• Bugscope Teamyou can tell that they are thousands of ommatidia per eye
• Bugscope Teamthe string...i think is just dust/junk
• StudentThanks!
• Studentthanks so much!!!
• TeacherThank you, Scot, Joseph, and Cate for the very informative session!
• Bugscope Teamyes bugs can get bugs, and those bugs can get bugs as well
• 2:18 pm
• Bugscope Teammites are often about a 10th of a millimeter long
• Bugscope Teamthanks!
• Bugscope Teamit's been fun!
• Bugscope Team100 micrometers, or 100 microns, or 0.1 millimeters
• Bugscope TeamThank you, Everyone!
• StudentTHANK YOU!
• Bugscope Teamthat was fun!
• Studentbye!
• Bugscope Teambye!
• Bugscope Teamsee you next year!
• Bugscope TeamBye!
• Bugscope Teamhttps://bugscope.beckman.illinois.edu/members/2013-004
• Bugscope Teamhttp://bugscope.beckman.illinois.edu/members/2013-004
• Bugscope Teamwithout the s
• Bugscope Teamthat is your school's member page
• Bugscope Teambye!