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Are they solid plastic all the way through, or is there something else in the middle? -- Kurt Shaped Box ( talk) 00:42, 25 April 2008 (UTC)
What is a derivore? 99.226.26.154 ( talk) 00:43, 25 April 2008 (UTC)
I know trying to ID insects from s.o.'s description can be an exercise in futility, but I hope I can provide enough details to narrow it down to the family at least.
I have come across colonies of similar, perhaps the same, large black ant in Tanzania, both near the coast on sandy riverbanks in forest reserves in Dar es Salaam, and upcountry in acacia scrub in the Rift Valley, within sight of Ngorongoro and the Serengeti. They're ~~1cm long, not particularly numerous (one colony a hundred or so, another maybe a thousand), and they emit a noise that sounds like rain when disturbed. Although I've never been stung, I've seen the effect on others, and it's clearly painful, though even a 4-yr old will stop crying after 5-10 minutes, and there's no swelling (from a single sting, anyway). However, they have one of the more painful ant stings in the area. They're diurnal hunters, and hit harvester termites on their forays. (Prob'ly other things, but termites is what I've seen.) In Swahili they're known as sungu-sungu, though there's so much regional variation in species and names that that might not be much good for an ID. They're larger than the siafu.
Anyone have any ideas?
Thanks, kwami ( talk) 01:29, 25 April 2008 (UTC)
According to Zeno's paradox#Does Quantum Theory solve the paradox?, it states that Planck length and Planck time are the smallest mesurable units of their respective dimensions. It then implies that space may be discontinuous and not infintely divisible, having the Planck length as the smallest unit of traversable space. How could this be? Where could I find more information about this? Furthermore, why is it (Planck length) the smallest mesurable unit of space, the Planck time the smallest mesurable amount of time? Why can nothing smaller be meaured? Thanks, Zrs 12 ( talk) 02:50, 25 April 2008 (UTC)
Can anyone identify the spiders in the article? These spiders are orb-weavers, roughly .5 to 1 cm long. They live in trees, power lines and tall grasses. They are found here in the Philippines. I posted this question on WP:SPI on August 2007 but didn't get any replies.-- Lenticel ( talk) 05:58, 25 April 2008 (UTC)
Hi, What is actually the shape of each shell of an atom ? Is it a 3-D spherical shape, or an ellipse like that of the planets, or something else? Thanks. 116.68.70.51 ( talk) 10:37, 25 April 2008 (UTC) A 15 year old.
Thank you! 116.68.71.144 ( talk) 13:12, 26 April 2008 (UTC)A 15 year old
Hi! This is the same 15 year old again.........What I want to ask is, when an eyelash falls in the eye, somewhere in the white portion, I might not even notice it, but if it falls on the pupil, I would get a prickly stinging sensation immediately, even if it touches only a small portion of my iris and doesn't interfere with vision. Why is it so? I thought that the conjunctiva covered the front of the eye evenly. How should I know precisely when something touches only a certain portion?? (The conjunctiva doesn't have nerves, does it??) 116.68.70.51 ( talk) 10:45, 25 April 2008 (UTC) A 15 year old
The pupil isn't part of the surface of the eye. Think of the surface of the eyeball as consisting of two parts: the white part, the sclera, and the clear part (which overlies the iris, lens, and pupil), called the cornea. The sclera has very little in the way of neuroreceptors, but the cornea is one of the most sensitive and densely innervated tissues in the body. Corneal abrasions are exquisitely painful. - Nunh-huh 20:07, 25 April 2008 (UTC)
Someone told me today that numbers like 911, 112 and 999 (emergency numbers) can be called without any signal. I doubt very much that this is possible, but if it is, someone please explain how it can be? Thanks! Regards, CycloneNimrod Talk? 16:54, 25 April 2008 (UTC)
I've been cleaning up the NAV disamb page and I just want to check whether the following is correct:
Zain Ebrahim ( talk) 17:05, 25 April 2008 (UTC)
What causes dark undereye circles? -- 70.167.58.6 ( talk) 18:54, 25 April 2008 (UTC)
moved from Village Pump -- Kesh ( talk) 21:44, 25 April 2008 (UTC)
We have questions about weird things our bird does. what size are their hearts? our bird will look straight ahead at us and we can barly see his eyes...can he see us? also...he does this weird thing with his mouth. It looks like he's yawning, but he'll do this over and over again. & whats the best way to start petting him? He's used to us, but he doesnt like us touching him. Whats he doing? Thanks email removed —Preceding unsigned comment added by 209.33.106.106 ( talk) 17:09, 25 April 2008 (UTC)
Science desk | ||
---|---|---|
< April 24 | << Mar | April | May >> | April 26 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
Are they solid plastic all the way through, or is there something else in the middle? -- Kurt Shaped Box ( talk) 00:42, 25 April 2008 (UTC)
What is a derivore? 99.226.26.154 ( talk) 00:43, 25 April 2008 (UTC)
I know trying to ID insects from s.o.'s description can be an exercise in futility, but I hope I can provide enough details to narrow it down to the family at least.
I have come across colonies of similar, perhaps the same, large black ant in Tanzania, both near the coast on sandy riverbanks in forest reserves in Dar es Salaam, and upcountry in acacia scrub in the Rift Valley, within sight of Ngorongoro and the Serengeti. They're ~~1cm long, not particularly numerous (one colony a hundred or so, another maybe a thousand), and they emit a noise that sounds like rain when disturbed. Although I've never been stung, I've seen the effect on others, and it's clearly painful, though even a 4-yr old will stop crying after 5-10 minutes, and there's no swelling (from a single sting, anyway). However, they have one of the more painful ant stings in the area. They're diurnal hunters, and hit harvester termites on their forays. (Prob'ly other things, but termites is what I've seen.) In Swahili they're known as sungu-sungu, though there's so much regional variation in species and names that that might not be much good for an ID. They're larger than the siafu.
Anyone have any ideas?
Thanks, kwami ( talk) 01:29, 25 April 2008 (UTC)
According to Zeno's paradox#Does Quantum Theory solve the paradox?, it states that Planck length and Planck time are the smallest mesurable units of their respective dimensions. It then implies that space may be discontinuous and not infintely divisible, having the Planck length as the smallest unit of traversable space. How could this be? Where could I find more information about this? Furthermore, why is it (Planck length) the smallest mesurable unit of space, the Planck time the smallest mesurable amount of time? Why can nothing smaller be meaured? Thanks, Zrs 12 ( talk) 02:50, 25 April 2008 (UTC)
Can anyone identify the spiders in the article? These spiders are orb-weavers, roughly .5 to 1 cm long. They live in trees, power lines and tall grasses. They are found here in the Philippines. I posted this question on WP:SPI on August 2007 but didn't get any replies.-- Lenticel ( talk) 05:58, 25 April 2008 (UTC)
Hi, What is actually the shape of each shell of an atom ? Is it a 3-D spherical shape, or an ellipse like that of the planets, or something else? Thanks. 116.68.70.51 ( talk) 10:37, 25 April 2008 (UTC) A 15 year old.
Thank you! 116.68.71.144 ( talk) 13:12, 26 April 2008 (UTC)A 15 year old
Hi! This is the same 15 year old again.........What I want to ask is, when an eyelash falls in the eye, somewhere in the white portion, I might not even notice it, but if it falls on the pupil, I would get a prickly stinging sensation immediately, even if it touches only a small portion of my iris and doesn't interfere with vision. Why is it so? I thought that the conjunctiva covered the front of the eye evenly. How should I know precisely when something touches only a certain portion?? (The conjunctiva doesn't have nerves, does it??) 116.68.70.51 ( talk) 10:45, 25 April 2008 (UTC) A 15 year old
The pupil isn't part of the surface of the eye. Think of the surface of the eyeball as consisting of two parts: the white part, the sclera, and the clear part (which overlies the iris, lens, and pupil), called the cornea. The sclera has very little in the way of neuroreceptors, but the cornea is one of the most sensitive and densely innervated tissues in the body. Corneal abrasions are exquisitely painful. - Nunh-huh 20:07, 25 April 2008 (UTC)
Someone told me today that numbers like 911, 112 and 999 (emergency numbers) can be called without any signal. I doubt very much that this is possible, but if it is, someone please explain how it can be? Thanks! Regards, CycloneNimrod Talk? 16:54, 25 April 2008 (UTC)
I've been cleaning up the NAV disamb page and I just want to check whether the following is correct:
Zain Ebrahim ( talk) 17:05, 25 April 2008 (UTC)
What causes dark undereye circles? -- 70.167.58.6 ( talk) 18:54, 25 April 2008 (UTC)
moved from Village Pump -- Kesh ( talk) 21:44, 25 April 2008 (UTC)
We have questions about weird things our bird does. what size are their hearts? our bird will look straight ahead at us and we can barly see his eyes...can he see us? also...he does this weird thing with his mouth. It looks like he's yawning, but he'll do this over and over again. & whats the best way to start petting him? He's used to us, but he doesnt like us touching him. Whats he doing? Thanks email removed —Preceding unsigned comment added by 209.33.106.106 ( talk) 17:09, 25 April 2008 (UTC)