Connected on 2009-11-25 08:30:00
from Ludlow, MA, US
- 7:31 am
- Bugscope Teamrxl started, sample is coating...
- Bugscope Teamschool is Tri-County RVTHS, in Ludlow, MA, south of Boston
- Bugscope Teamteacher is Nancy Sibilia
- 7:40 am
- Bugscope Teamhi, welcome to bugscope!
- Bugscope Team'scope is pumping down
- TeacherOur school is in Franklin, Ma (not Ludlow)...no big deal, just clarifying.
- Bugscope Teamah, okay, thanks for the clarification
- Bugscope Teamstarting presets soon
- 7:46 am
- Bugscope TeamMs. S the microscope chamber is almost at vacuum. As soon as it reaches vacuum we will turn on the electron beam and start making presets for your session. Sample looks good today.
- Bugscope Teamdo you have any questions for us ms. sibilia?
- TeacherWhat are we looking at....bug?
- Bugscope Teamthat was the inside of the scope, now we are looking at the sample under the electron gun, this is a fruit fly i think?
- Bugscope Teamor wait, a wasp
- Bugscope Teama small parasitic wasp
- Bugscope Teamwhoa, brochosomes on a wasp!
- Bugscope Teamthis wasp has been partying with a leafhopper
- Teacherbronchosome? what is that?
- Bugscope Teambrochosomes are those little balls, they come from a leafhopper
- TeacherWOW!!!
- TeacherCan we see its "eyes"?
Bugscope Teamoh yeah, we'll make presets for its compound eyes, we always do. the compound eyes are like way cool
- 7:51 am
- Bugscope Teamwe are making these presets for you, and when your session starts you can click on any one of the presets and it will take you to that location
- Bugscope Teamso this is a preview for you
- TeacherOhhhh, I see! Thanks!
- Bugscope Teamright now the session is still locked because we are making presets, but once we are done, i'll unlock it and you can start practicing controlling the scope
- Bugscope Teamyou don't have students yet, do you?
- TeacherYes....many students are watching as we get set ip!!
- Bugscope Teamhey no problem
- 7:57 am
- Bugscope Teamwe make a lot of preset, so you can see all the interesting parts on the sample very quickly
- Bugscope Teamand sometimes when you drive around with the scope, it's easy to get lost. if that happens, just click on any preset
- Teacherlooks like bubble wrap...what is that?
Bugscope Teamthat was the fly compound eye, the facets were shrunken because the bug dried out when it died
- 8:03 am
- Bugscope Teamthere's a lot of weird looking stuff on bugs when you look at them in an electron microscope at 1000's of x mag...
- 8:09 am
- 8:15 am
- 8:21 am
- Bugscope Teamok, we are done with presets!
- Bugscope Teami just unlocked the session, you should see controls on your right
- Bugscope Teamwe are ready to start the session anytime now
- Bugscope Teamplease go ahead and have your students login, or just start asking questions
- 8:26 am
- Bugscope TeamWe are done. You are the supreme rulers. Please let us know when you have questions. You might want to use click to center rather than click to drive.
- TeacherCan you remind us what exact part of wasp we are now looking at?
- Bugscope Teamoh, well, this is a spider
- Bugscope Teamthe fangs of a spider
- TeacherAhhhh!
- Bugscope Teamyou can lower the magnification to see the whole spider
- Bugscope Teamgive it a try, click on the - to lower the mag
- Bugscope Teamthere ya go, nice!
- Bugscope Teamsee the spider form now?
- Bugscope TeamGood morning from California!
- Bugscope TeamSometimes critters do not look so good when we bring the mag up on them, which is why we put a lot of insects on the stub.
- TeacherSo the spider is upside down, right?
Bugscope Teamyep, the more interesting parts of insects are on the underside, so we usually put them on their backs
- Bugscope TeamGood Morning, Annie!
- Bugscope TeamAnnie is our entomologist, up early today to help and because she is totally wired all of the time.
- Teacherwhat is the proper term for the hairs?
Bugscope Teamsetae (pronounced see-tee)
- Bugscope Teamsetae
- 8:31 am
- Bugscope Teamseta singular, setae plural
- Bugscope Teambristles, trichae
- Bugscope Teamon a spider you see, often, what are termed plumose setae -- they resemble very long pine trees
- Bugscope Teamthis is the tip of the proboscis of a true bug (Hemiptera)
- Bugscope TeamThe setae can serve many different functions. Some are just for looks, some are for defense, and many of them help the spider to sense the environment
- Bugscope Teamif you take the mag down from here you can see where you are
- Bugscope Teamthe head is to the NE
- Bugscope Teamlet us know if you have any trouble driving, and we are certainly here to answer any questions about what you're seeing, or how things work, or why Annie is not here in Illinois in the cold rain
- 8:37 am
- Bugscope Teamback to the spider fangs
- Bugscope Teamthe things they are attached to are chelicers, or chelicerae; they move sideways to bite
- Teacherdo all spiders have fangs?
Bugscope TeamYes, they do
- Bugscope Teamyes I think that is true
- Bugscope Teamthey inject venom into their prey, the venom dissolves the internal organs of the prey, and the spider sucks it all back out like a milkshake
- Bugscope Teama bugshake
- Bugscope Teamnot all spiders use webs, though. some sneak up on their prey and grab and bite them that way
- Bugscope TeamMs S be sure to scroll through the presets to the right of the chat box and bring up other insects you'd like to see
- 8:42 am
- Bugscope Teamare you seeing the full screen -- all of the chat, the presets, the questions answered on the left?
- Bugscope TeamYay!
- Bugscope Teamah cool, this is a moth head
- Bugscope Teamthis is a butterfly
- TeacherSorry, we are having technical difficulties (on the part of the school)
Bugscope Teamthat's okay, we are here, anything i can help with?
- Bugscope Teamack, sorry, a butterfly
- Bugscope Teamthis is an Orange Sulfur butterfly, Colias eurytheme
- Bugscope Teamfrom this view it would be hard to tell whether we were looking at a butterfly or a moth
- Bugscope Teamif you zoom in on one of the compound eyes you can see more detail, the compound eyes are very interesting
- Bugscope Teamyes, a moth kinda looks like this too, although is the moth head wider?
- Bugscope Teamsee the eyes, on either side of the face? the proboscis is coiled up, but you can see it next to the left eye, which is on the right
- 8:48 am
- Bugscope TeamButterflies have clubbed antennae and moths have other kinds of antennae--plumose or plain-o straight antennae. Butterflies fly during the day, and moths (typically) fly at night.
- Bugscope Teamms. sibilia, do you mind if i drive around a bit? take us to some more locations?
- 8:53 am
- Bugscope TeamThese are some different types of setae
- 8:58 am
- Bugscope Teamtenent setae are what help insects to climb walls and such
- Bugscope Teamthis is one of the claws of a fly we found that we do not recognize
- Bugscope Teamtenent comes from the spanish tener, meaning to hold
- Bugscope Teamthose little pads use a force called the van der waals force, which is very small force, but when you have thousands of those pads, it adds up to a force that can help keep the bug on the wall
- Bugscope Teamthis is a wasp now
- Bugscope Teamstandard old dude, just chilling out
- 9:03 am
- Bugscope Teambrochosome!!!
- Bugscope Teamthat little ball is a brochosome,
- Bugscope Teamthere are boatloads of brochosomes on the thorax
- Bugscope Teamyou can see the scalebar says 819 nanometers
- Bugscope Teamin the lower left
- Bugscope TeamMs S brochosomes are produced by leafhoppers, only, but we find them on other insects
- Bugscope Teamthe brochsome is produced by the leafgopper
- Bugscope Teamleafgopper being my own species of course...
- Bugscope Teamall those little white spots are brochosomex
- Bugscope Teamsee how small those brochosomes are? can't even see them now
- Bugscope Teamand now, here is a wasp compound eye
- 9:09 am
- Bugscope Teamumm, trying to get to the eye
- Bugscope Teamthe preset moved, looks like
- Bugscope Teamscope drifted
- Bugscope Teamalso, remember, all the chat and images from this session are saved to your member page, so you can access it after this session: http://bugscope.beckman.illinois.edu/members/2009-086
- Bugscope Teamthese are wing scales, which have those holes in them to help keep the weight down, and allow flying to be easier
- 9:14 am
- Bugscope Teami'm looking for a spiracle
- Bugscope Teamhere's a silver fish thorax
- Bugscope Teamkinda looks like art from jean dubuffet
- 9:19 am
- Bugscope Teamhere's the little dudes head
- Bugscope Teamnotice how many setae are all over insects
- Bugscope Teamyou find setae all over. that's because insects have exoskeletons, and those exoskeletons don't have nerves in them like our skin does. so these setae stick through the exoskeleton to nerves underneath, and that's how insects feel things
- Bugscope Teamsetae can feel, taste, hear vibrations, etc.
- Bugscope Teamsetae can be mechanosensory for touch, and chemosensory for smelling chemicals and stuff
- Bugscope Teameach ommatidia has a lens in it
- Bugscope Teamso, yeah, that's a lot of lens's, in just this one compound eye
- Bugscope Teamommatidium is singular for ommatidia
- Bugscope Teamwow, this dude has a crazy haircut
- Bugscope Teamkinda like don king, but more crazy
- Bugscope Team isn't there a sesame street character that looks like this?
- Bugscope Teamhere's a small fly
- Bugscope Teamcate thinks this is an aphid
- 9:24 am
- Bugscope Teamwhat is this???
- Bugscope Teamthis is some kind of mite
- Bugscope Teamusually these are ON bugs, not hanging out by themselves
- Bugscope Teamok, we are at the end of our session time.
- Bugscope Teamplease remember your member page: http://bugscope.beckman.illinois.edu/members/2009-086
- Bugscope Teamthat page will have all the chat and images from this session, so you can review it anytime
- 9:31 am
- 9:38 am
- Bugscope Teamover and out!
