Connected on 2011-10-13 19:00:00 from Alameda, California, United States
- Bugscope Team waiting for vacuum
- Bugscope Team very close now
- Bugscope Team we are ready to roll
- Bugscope Team Hi Danielle!
- Bugscope Team Welcome to Bugscope!
- Guest Hello!
- Guest Thank you-Im in the education program at WSU-wanted to check this place out
- Bugscope Team Hey Cool.
- Guest :)
- Bugscope Team Michele Korb should be on any minute.
- Guest Okay
- Bugscope Team But please let me know if you have any questions about this.
- Guest Okay thanks
- Bugscope Team She is at California State -- East Bay.
- Bugscope Team Hello CSUEB!
- Bugscope Team Welcome to Bugscope!
- Guest Cool-so just figuring out how to navigate this site... the main picture is an antenna from what kind of bug?
Bugscope Team its a closeup of the antenna of a centipede
- Guest Ohh wow
- Bugscope Team oops 'it's a closeup'
- Bugscope Team CSUEB has control right now, but Michele -- Dr Korb -- may be talking with her class at the moment
- Teacher Yes I am ")
- Teacher :)
- Teacher Hi Scott and Daneielle
- Teacher Danielle
- Guest Hello :)
- Bugscope Team Danielle is from WSU and just dropped in.
- Guest I can think of lots of little boys that would think this is so cool
- Teacher What is WSU?
- Guest Washington State University
- Guest Im an elementary education major
- Bugscope Team you can see the centipede's retention plan
- Bugscope Team those little toothlike elements that hold its prey while it bites it and injects venom
- Guest thats amazing
- Bugscope Team you can see one of the pores in the lower fang
- Teacher Rock on Danielle!!
- Guest :)
- Bugscope Team the pore is to the far right
- Teacher What is the stringy stuff?
- Guest so centipedes are the bad ones, i always get them mixed up with milipedes
- Bugscope Team fungus
- Bugscope Team centipedes have one set of legs per segment whereas millipedes have two sets per segment
- Teacher What are teh dome shaped things at the bottom of the image?
Bugscope Team that's the retention plan
Bugscope Team when the centipede pulls its prey toward its mouth, those toothlike things help grip it
- Bugscope Team spiders have those as well, and praying mantises have them on their forearms
- Bugscope Team or something quite similar
- Guest are those root like things fungus too
Bugscope Team yes we will see more of that
Bugscope Team today
- Guest does the fungus naturally grow on them?
Bugscope Team once an insect/arthropod dies it will start to rot, and the fungus will take over
Bugscope Team so yeah I guess it is natural
- Teacher hi my name is kim i am a student
Bugscope Team Hi Kim! Welcome to Bugscope!
- Guest ohh, makes sense
- Guest Hello Kim-me too
- Bugscope Team Kim please let me know when you have any questions.
- Bugscope Team this is really pretty cool -- I have seen blade-like teeth on the inner curve of a claw before
- Bugscope Team likely this beetle cannot climb well because it does not have sticky hairs (tenent setae) on little pads on its tarsi.
- Bugscope Team the forearm segments are called tarsi
- Teacher what is the highest magnification?
Bugscope Team this 'scope will go over 200,000x
- Bugscope Team when we use it for research that is about the extent of a publishable images
- Bugscope Team when we use the microscope for Bugscope we have the specimens relatively far from the pole piece, where the electrons come from, so we don't go as high in mag
- Guest so we are looking at a mite on the beetle?
Bugscope Team the mite is only in one place I could find earlier
- Bugscope Team this is the face of a spider
- Teacher Hi there--Marcia here now.
Bugscope Team Hi Marcia!
- Teacher :) Cool job.
- Bugscope Team you can see four of its eyes, to the top left
- Teacher So are we looking at hair?
Bugscope Team lots of insects/arthropods have what looks like hair
- Teacher Will you please zoom in on the four eyes? We think we know, but are unsure.
- Bugscope Team the hairs is called setae, or trichae, or bristles, or spines...
- Teacher Dude! We had a big exclamation over here :)
- Bugscope Team actually we can see that there are two eyes here, one behind the other
- Teacher Well, we know it's not satay ....hahaha
- Bugscope Team oops 'the hair is called setae...'
- Teacher How can they see if the eyes are all covered up? Or are we seeing the under side?\
Bugscope Team this is the surface of the eye; we cannot see past the surface with the electron beam
- Bugscope Team when the spider is alive those are kind of crystalline looking
- Teacher So is there an actual eyeball in there then?
Bugscope Team often they do not see very well; that is why they have so many sensory setae
- Bugscope Team they are super sensitive to vibration, no suprise
- Bugscope Team surprise sorry my spelling is a disaster
- Bugscope Team this is one of the mechanosensory setae
- Teacher Hi I'm Pawan (puh-won)
Bugscope Team Hi Pawan!
- Teacher thats okay
- Teacher can you help us focus this?
- Bugscope Team insects and spiders etc. have exoskeletons -- they don't have skin like we do with nerve endings in it. having an exoskeleton, like a shell (like a shrimp shell, for example) is like if you were wearing armor -- you would not be able to feel something touching you, or the wind...
- Bugscope Team not too much to see beyond this, but you can find another seta
- Teacher what exactly are we seeing?
Bugscope Team you are seeing a single seta on the head of a spider in front of its eyes
- Bugscope Team the setae penetrates the cephalothorax and connects to a nerve beneath it so the spider can feel when something is touching it or blowing on it
- Teacher Hi Marissa and Mia are here
Bugscope Team Hi Marissa and Mia!
- Teacher WE would like to see the Armadillidium specimen
- Teacher PLease take us there now
- Bugscope Team the rolypoly?
- Bugscope Team you can click on it yourself if you want...
- Bugscope Team this is one of its legs
- Bugscope Team very dirty
- Bugscope Team these are actually crustaceans, and they have gills
- Teacher Just testing you
Bugscope Team wanted to make sure you knew, that's all.
- Teacher Does it have, like, fingernails, or what?
Bugscope Team yes
- Bugscope Team the shell of an insect or arthropod like this is made of chitin, which is like our fingernails
- Bugscope Team and the toe we see in the very middle of the image now is thickened chitin
- Teacher What is the stringy hairy stuff for?
Bugscope Team tons of fungus on this critter
- Teacher Just standard protection? From what exactly?
Bugscope Team the thickened chitin on the tip of the leg is what it uses to walk on, so it's like a shoe or a boot perhaps. is that what you meant?
- Bugscope Team here we see a few of the facets of the fly's compound eye. they're called 'ommatidia.'
- Bugscope Team the fly is kind of beat up
- Teacher Hi Scott, Gwen here. What do you mean by the juju on the eye?
Bugscope Team Gwen it is just some dried fluid we don't recognize. Sometimes insects throw up on themselves when they die, or hemolymph oozes out.
- Bugscope Team some insects, like butterflies, wasps, and moths, can have thousands of ommatidia -- up to 17,000 per eye
- Bugscope Team maybe you can tell me what these things are
- Bugscope Team you sent them...
- Bugscope Team this one has a nasty sharp spine right in the center
- Teacher That's awesome. Jon here, we collected these burrs, or seeds outside of our campus.
Bugscope Team gnarly.
- Bugscope Team there's one to the left that I mounted upside down compared to this
- Bugscope Team this ant's head is glowing because the electrons are not running off of it very readily
- Bugscope Team you know you are driving a $600,000 electron microscope from your classroom
- Teacher are those fine hairs all over it's face?
Bugscope Team yes they're called microsetae (original, huh?), and they are not sensory. they likely help the ant thermoregulate and also give it a recognizable pattern.
- Teacher Hi. Barb, Denise, and Teresa, and Chris, here
- Teacher We would like you to focus on the fang, please.
- Teacher yes we are aware and amazed
Bugscope Team I worked with a class yesterday, and I thought it went well; when the guy sent in his comments he indicated that he thought he was looking at slides. Dude you were driving the 'scope!
- Teacher What kind of spider is that?
Bugscope Team it was a skinny reddish spider
- Teacher Too cool
- Teacher LOL
- Bugscope Team there is a lot of dried fluid here, so you cannot see the poison pores
- Bugscope Team spiders inject venom into their prey, the venom dissolves their insides, and the spiders suck it all up like a milkshake
- Teacher Please show us the poison pores on antoher speciman
- Teacher Too bad, I was hoping to see the posion pores
Bugscope Team you can click on the centipede fang to see what those look like, very similar
- Bugscope Team awesome
- Bugscope Team I think this may not be for delivery but rather function like a straw
- Bugscope Team sweet
- Teacher What are the little circles?
Bugscope Team those are, I believe, chemosensory pits that help the centipede taste its food
Bugscope Team like tastebuds
- Bugscope Team spider fangs look almost exactly like this
- Teacher I wonder if it likes pizza
Bugscope Team is this making you hungry?
- Bugscope Team almost all ants you see are females. when you see males, they have wings. the queen is the only female that may have wings, but she loses them when she starts laying eggs.
- Teacher That is very interesting
- Bugscope Team you can see the mandible here; it opens side to side (there are two of them) like a gate
- Bugscope Team ant mouths often look like they have a whole 'nother insect in them
- Bugscope Team they have two sets of palps that are like accessory limbs -- they help them manipulate and taste their food
- Teacher Yes it does look like it has another insect in the ant's mouth
Bugscope Team horrible table manners
- Bugscope Team hey you found one of the claws!
- Teacher That's neat
- Bugscope Team SEM is me sitting at the 'scope, driving sometimes
- Bugscope Team insects have a head, a thorax, an abdomen, and six legs
- Teacher HI - it's Michele Korb again. We are going to log out in a minute. Any final words of wisdom?
- Bugscope Team I can't think of anything, y'know, profound...
- Bugscope Team Good job driving!
- Bugscope Team usually there are two claws, and they can close together to grip things
- Bugscope Team they work, often, like those extender tools you use to pluck cans off of top shelves
- Bugscope Team there's a tendon inside the tarsus called an unguitractor that makes that happen.
- Bugscope Team some (sort of) wisdom for you...
- Teacher THat is very wise!!
- Bugscope Team heh
- Bugscope Team thank you for connecting with us this evening!
- Bugscope Team it's like a little bouquet of mold spores
- Teacher COOL MOLD!! HOw sweet! OK -we are going to leave now. Thanks for a great session. See you on Monday!
- Bugscope Team See you Monday!
- Bugscope Team Thank You!
- Bugscope Team Thank you, Danielle, as well!
- Bugscope Team And everyone else!
- Bugscope Team Bye!