Connected on 2009-05-27 15:15:00 from , CA, US
- 2:57pm
- Bugscope Team German cockroach head.
- Bugscope Team hello alyssa!
- Bugscope Team Yay! Alyssa!
- Bugscope Team welcome to bugsfope
- Bugscope Team this is the eye of the cockroach
- Bugscope Team bugscope, silly me
- Bugscope Team I just drove up to see it.
- Bugscope Team you have control, Alyssa, and can choose from among the presets, change the mag, drive off the edge of the world (not recommended)...
- Bugscope Team let us know if you have any trouble, or any questions
- 3:02pm
- Bugscope Team alyssa, do you see the chat?
- Teacher what bugs are we going to be looking at?
Bugscope Team we have a fruit fly, leafhopper, katydid, bumblebee, a few beetles, a damselfly-type insect, german cockroach
- Bugscope Team leafhopper, katydid, a few beetles, a weevil...
- Bugscope Team fruit fly, German cockroach...
- Bugscope Team if you scroll though the presets, you can see all the presets that we made for you, lots of cool stuff there
- Teacher yes i do see the chat!
Bugscope Team cool!
- Bugscope Team and the bumblebee has a few mites on it
- Bugscope Team and Alyssa can you see the controls, like Magnify, to the top right?
- Teacher I can not see the preset though
Bugscope Team ah, yeah, like scott said, click F11 to maximize your browser window... can you see them now?
- Bugscope Team if your browser window needs to be resized you can hit F11
- 3:07pm
- Bugscope Team the presets should be to the right of the chatbox here, and you should be able to scroll through them
- Teacher ye ahg i tried to hit the F11 key and it still did not show the presets
- Bugscope Team if maximizing your browser window doesn't work, you'll need to increase your screen resolution. i can help you do that if you need help
- Bugscope Team ok, we need to increase your screen resolution
- Bugscope Team what are you using now, do you know?
- Teacher ok! help
- Bugscope Team ok, step by step, i'll step you through
- Teacher im not even sure how to find out
- Bugscope Team on the desktop, right click anywhere on it
- Bugscope Team then you'll see a menu pop up, click on properties
- Bugscope Team do you see that?
- Teacher yes im there
- Bugscope Team cool, one of the tabs is resolution, that should tell you whaty the current screen resoltuion is, and you should be able to change it (if you have admin rights on the computer)
- Bugscope Team can you see what the screen res is?
- Bugscope Team like, the settings tab
- Teacher ok! I took a gamble and it worked!
- Bugscope Team oh wait wait, it's the "settings" tab, yes, i forgot that sorry
- Bugscope Team cool, bugscope requires at least 1024x768 screen resolution
- Bugscope Team so now you see the presets?
- Bugscope Team yay! so you can see the whole browser now, and the presets, etc.?
- Teacher yes we can see it! OK we are going to start now!
- Bugscope Team cool beans
- Bugscope Team this is a leafhopper
- Bugscope Team see the compound eye, and the little antenna tucked into the side of the head?
- 3:13pm
- Bugscope Team it's like a conehead
- Bugscope Team this is a profile view, it is facing left
- Teacher is this the eye ball that we are seeing
- Bugscope Team totally
- Bugscope Team that's a compound eye
- Bugscope Team yes it is
- Bugscope Team like half a golfball
- Bugscope Team yes I just kicked the mag up, but you can do the driving
- Bugscope Team each little bump on it is an individual facet, with a lens. they are called ommatidia
- Bugscope Team the little furry stub to the left is one of the antennae
- Bugscope Team nice job driving the scope alyssa!
- Bugscope Team monster!
- Bugscope Team fruit fly claw
- Bugscope Team this is a claw of a fly, a fruit fly
- Bugscope Team if you take the mag down you can see where you are. the head is to the north
- Bugscope Team the fruit fly has six legs, and each has a claw like this on it
- 3:18pm
- Bugscope Team the little things that resemble wilted flowers are tenent setae -- they help the fly cling to surfaces
- Bugscope Team insects are also really hairy. those hairs are called setae (see-tee) and they help the insect sense its environment
- Bugscope Team closer to the head....
- Bugscope Team take the mag down to see where you are
- Bugscope Team or legs
- Bugscope Team you can see that it has a comb on it
- Bugscope Team the bumps in the background is the carbon tape we stick the bugs on
- Bugscope Team Yay!
- Bugscope Team the head of the fruit fly!
- Bugscope Team Alyssa once you can see the sample you can try 'click to center' if you wish, to nail a certain place.
- Bugscope Team this is the eye, and you can see the antenna
- Bugscope Team the mouth (it has sucking mouthparts) is to the right
- Bugscope Team sponging mouthparts really since it acts like a sponge :)
Bugscope Team Cate is right.
- Bugscope Team the little fur cave to the left and below the eye is one of the spiracles, through which insects breathe
- Bugscope Team you can see that the eye has lots of facets (the ommatidia), and there are also lots of little spikes sticking out of the surface of the eye.
- 3:24pm
- Bugscope Team flying insects have huge compound eyes compared to insects that live in the ground, like ants
- Teacher typical size for a fruit fly
Bugscope Team they are around 3mm big
- Bugscope Team it's a compound eye, meaning that it is composed of all of those individual facets, which produce lots of images to process in the brain
- Bugscope Team probably 5 millimeters long
- Bugscope Team oops
- Bugscope Team this is one of the mouthparts of a beetle
- Bugscope Team it is a palp, which is what insects use to taste and to manipulate their food
- Bugscope Team pollen!
- Teacher it is not loading the image
- Bugscope Team hit F5
- Bugscope Team if you see a blank screen try refreshing your browser window
- Bugscope Team or Refresh
- Teacher got it now
- Bugscope Team does that work?
- Teacher yes it works now
- Bugscope Team the bumblebee was busy, picking up pollen
- Bugscope Team there are mites on the bumblebee as well
- Bugscope Team mites dont usually have any eyes
- Bugscope Team they are super tiny, not too much larger than the pollen grains
- Bugscope Team if you take the magnification down, in steps, you can get an idea of the relative size of the bee and the mite
- Bugscope Team it has powerful arms to help it cling to the bee
- 3:29pm
- Bugscope Team ooh a roach! how did that get here?
- Bugscope Team roaches are very streamlined
- Bugscope Team they have very simple features
- Bugscope Team it looks like it has also started to decay a little bit maybe or just has some sort of gunk dried onto it
- Bugscope Team you can see that this roach had been in a collection, and someone had pinned it after it died
- Bugscope Team roaches are able to live in a variety of environments
- Bugscope Team they are not specialized like, for example, a tick or a mosquito
- Teacher what makes them able to adapt well to harsh enviornments
- Bugscope Team they are relatively smooth and compact -- they don't have big frilly antennae, and as Cate said they are streamlined so they can squeeze into small spaces
- Bugscope Team Cockroaches have 2 autonomous brains - one in their head and one in their tail as a result they react to danger faster than the blink of an eye. They don't need both brains to survive - therefore cockroaches can remain active after their heads are removed.
- 3:34pm
- Bugscope Team compare it to the leafhopper, with its big bulging eyes and its sort of triangular body shape.
- Teacher what is this
Bugscope Team this is a palp, one of the accessory feeding apparatus
- Bugscope Team roaches have hairlike spines that stick out behind them, and if you touch them the roach will move automatically, without 'thinking'
- Bugscope Team there are mandibular (the lower jaw in people) and maxillary (the upper jaw in people) palps
- Bugscope Team the palps are like little limbs that can move around and help the insect taste as well as manipulate its food
- Bugscope Team the little things inside the palp, which looks like a jet engine, are like taste buds
- Bugscope Team they are tiny chemosensors
- Bugscope Team the chemosensors kind of look like little fingers
- 3:40pm
- Bugscope Team two mites!
- Teacher what are these on
- Bugscope Team here are 2 mites playing in bumblebee setae (aka bug hair)
- Bugscope Team they have soft bodies and are kind of shriveled since they died
- Bugscope Team yes as Cate says these were riding for free on a bumblebee
- Bugscope Team they are small, even for mites
- Bugscope Team if you decrease the magnification you can see where they are on the bumblebee
- Bugscope Team just a warning tho is the bumblebee is very large so you wont be able to see it all at once
- Bugscope Team yes it is a very large bee
- 3:46pm
- Teacher wow the kids are loving this
- Bugscope Team now you can start to see how small the mites are -- not much larger than pollen
- Bugscope Team pollen are like basketballs to mites
- Bugscope Team see the pollen grains through the hairs (setae)? to the right?
- Bugscope Team leafhoppers (this is one of the claws) usually have tiny beads on them called brochosomes
- Bugscope Team insects always have six legs, and they have claws like this at the end of each leg
- Bugscope Team that little folded pad probably helps the leafhopper stick to the leaves it walks on
- Bugscope Team leafhoppers like to drink the sap from leaves
- 3:51pm
- Bugscope Team yes leafhoppers and any other insect with a proboscis drink their food, whether it be plant sap or the insides of other insects, or our own blood!
- Bugscope Team the claws look very sharp but they are so tiny they would only tickle if it was walking on you
- Teacher any kind of leaves?
- Bugscope Team the scalebar in the lower left corner says 105 microns, which is about one tenth of a millimeter
- Bugscope Team they favor certain leaves depending on what kind of leafhopper they are
- Bugscope Team some like potato leaves and are thus agricultural pests
- Guest wats does this thing do cate
Bugscope Team this is a claw at the end of the leg
- Bugscope Team we don't know what kind of leafhopper this is...
- Bugscope Team of a leafhopper
- Guest wats are does pointy things ae
Bugscope Team the 2 big pointy things are the ends of the claw. The spikes coming out of the leg are the setae (aka bug hairs)
- 3:57pm
- Bugscope Team the background we see is the carbon tape the insects are stuck to
- Bugscope Team now we see tiny hairs...
- Bugscope Team and now -- this is a cute little beetle cate found
- Guest ok by every one scot and cate getting off
- Bugscope Team see it's antennae? and its forelimbs
- Bugscope Team bye lil d. thanks for stopping by
- Bugscope Team Thanks Lil D!
- Guest wait were is alex
- Bugscope Team ack I should've said its antennae, not it's, which means 'it is'
- Bugscope Team He had to go pick up a cable for a computer project
- Bugscope Team we gave Alex a break; he helped us set up earlier
- 4:02pm
- Bugscope Team see the beetle mouthparts? when we put insects on the stage so we can image them, we put them on their backs so we can see their legs and their mouths
- Bugscope Team it has segmented antennae going out on either side of the head
- Bugscope Team we can't see his eyes, but as Cate says we can certainly see his antennae
- Bugscope Team you are driving a $600,000 microscope from your classroom, and the samples you see are in a vacuum chamber. they're also coated with gold-palladium to make them conductive, because we are using electrons to get our images. electrons don't see color, which is why the images are in black and white like an old movie
- Teacher wow this has been amazing! thank you very much!!!
- Bugscope Team of course if we did see color we would see silver...
- Bugscope Team Thank You!
- Teacher the kids say "thank you"
- Bugscope Team thank you! and as always you can get to your chat and images from today at your member page at http://bugscope.beckman.illinois.edu/members/2009-035/
