Brattleboro Union High School
Session 2009-105

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Transcript

Connected on 2009-12-14 10:00:00 from , VT, US

• 8:58 am
• Bugscope Teamalmost ready to start setting up presets
• Bugscope TeamGood morning!
• Bugscope TeamWelcome to Bugscope!
• TeacherHello! We'll be on in an hour. Looks cool!
• Bugscope TeamJust got things going. Should be fun.
• TeacherI gave the link and password to a couple other classes as well, who may join in.
• Bugscope TeamCool.
• 9:03 am

• 9:10 am

• 9:18 am

• 9:25 am

• 9:30 am

• 9:37 am

• 9:42 am

• 9:52 am
• Bugscope Teamwe are ready to roll
• Bugscope Teamsession is unlocked
• 10:01 am
• Teacheron in 3 minutes!
• Bugscope Teamall right!
• Bugscope Teamthis is a common black ground beetle
• 10:08 am
• Teachermagnified how many times?
• Bugscope Team2610x
• Bugscope Teamright now it's 2610x, as seen in the upper right corner
• Teacherwhat part of the beetle?
  Bugscope Teamit's the open tip of one of the palps
• Bugscope Teamif you click on the micron bar, lower left on the image, you can see the 'scope parameters
• Bugscope Teamthese guys eat other insects, mostly smaller beetles, aphids, worms, maggots...

• Bugscope Teamnow you can see a scale on the tip of that jaw
• Bugscope Teambig jaws
• Bugscope Teamlooks like it actually has six palps

• Bugscope Teamyou can see carbon doublestick tape in the background
• Teacherthanks a lot
• Bugscope Teamgood job focusing
• 10:13 am

• Bugscope Teamwe mount, as usual, most of the samples on the dorsal side -- ventral side up

• Teacherwhat kind of moth are we viewing?
  Bugscope Teamthis is on the moth
• Bugscope Teamthis is the moth's proboscis, which is usually coiled when not being used

• Bugscope Teamit was orange, an odd color of orange, not sure what kind
• Bugscope Teamlike a burnt orange color
• Teacherwhy are their hairs on the proboscis?
  Bugscope Teamwell, those hairs are called setae (See-tee), and they help insects to sense their environment. the setae on the proboscis probably aid in smelling the food? maybe even tasting it?
• Teacher*there

• Bugscope Teaminsects have an exoskeleton, not skin like we do. the exoskeleton is hard and has no nerves in it.
• Bugscope Teamsome of the setae on the proboscis also likely help the moth retain its hold on the flower while it is sucking nectar out of it

• Bugscope Teamso those hairs (setae) stick through the exoskeleton to nerves underneath, and that's how bugs feel things

• Bugscope Teamthe proboscis is extended like one of those New Years party favors, by forcing hemolymph into it.
• Bugscope Teaminsects are a lot hairier than they seem

• Bugscope Teamone of the compound eyes
• 10:19 am
• Bugscope Teamthese guys can often see in the ultraviolet wavelengths, and we cannot
• TeacherI'm having a tad bit of trouble navigating. Would you mind moving the microscope to the moth's eye?

• Bugscope Teambraden, can you click again in the image, to stop it from moving?
• Bugscope Teamlooks like click to drive was left on
• Bugscope Teami think you are in a click to drive motion, and you need to click again to stop
• Bugscope Teammake sure NOT to double click as well

• Bugscope Teamall the clicks are single clicks
• Bugscope Teamyay!!! nice job
• Teacherwhy shucks, thank you
• Bugscope Teamnow, you can click on any preset and it will take you there
• Teachernifty
• Bugscope Teamwhen using navigation, i'd stick to click to center, it's so much easier. click on a preset to move to a new location

• Bugscope Teamcool, you got it :)
• Teachersure, will do

• Bugscope Teamthis is a close-up of a moth compound eye
• Bugscope Teamif you zoom out again you can see the whole thing...

• Bugscope Teamspider claw
• Bugscope Teamlike a little rake
• Bugscope Teamah, cool, now this is a spider claw
• Bugscope Teamspiders often cannot see very well, although they usually have eight eyes. they are much more sensitive to vibration, and they have what are called plumose setae.
• TeacherWhy thank you kind sir

• Bugscope Teammany insects have claws of some kind. they use them to grab onto things, defense, ensnarl food, etc.
• Bugscope Teamplumose means they are symmetrical, like a long pine tree

• 10:24 am
• Bugscope Teamspiders also have this kind of cool thing they can do if they sense venom entering one of their limbs -- they can just let it fall off. It's called autotomy, or autotomizing a limb.
• Bugscope Teamnotice the scale bar in the lower left of the image

• Bugscope Team1 um = 1 micron = 1 millionth of a meter

• Bugscope Teamsee the eyes? and below, those bug things like buck teeth are the chelicerae

• Bugscope Teamat the lower ends of the chelicers (the chelicerae) are the fangs, which point inward. we often (like today) do not see them.
• Bugscope Teamspiders inject venom into their prey that dissolve the internal organs of the prey, and then they suck it all back up like a milkshake.
• TeacherAfter an arachnid 'drops' a leg which is infected with venom, does it have the ability to regrow the limb?
  Bugscope Teamif the spider molts, and sometimes they do, it can come out of the molt with a new limb.

• Bugscope Teamtarantulas, like other spiders, are softbodied, so they can easily be broken open
• TeacherWhy thank you Scot, your a most gracious navigator
• Teacher*you're
• 10:30 am
• TeacherI must log off now, but i do wish you a pleasent day and a happy Hanukkah
• Bugscope TeamOh....
• Bugscope TeamThank You!
• Bugscope Teamthanks braden
• Bugscope Teamthank you for doing bugscope with us
• Teacherany time my friend
• Bugscope Teambraden, all the chat and images are saved to your member page
• Bugscope Teamhttp://bugscope.beckman.illinois.edu/members/2009-105
• Bugscope Teamokay, closing the session down
• Bugscope Teamgood bye!