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head

A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aid in various sensory functions such as sight, hearing, smell, and taste, respectively. Some very simple animals may not have a head, but many bilaterally symmetric forms do, regardless of size.
Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nervous tissues concentrate at the anterior region, forming structures responsible for information processing. Through biological evolution, sense organs and feeding structures also concentrate into the anterior region; these collectively form the head.

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  1. J

    Head scratching heating problem

    Hi guys Been having a problem with the mother in laws heating. All has been well since she brought the house seven years ago. Then sometime last week the heating started firing up on its own even with programmer off. When it does this there is no control over anything. You can cycle through...
  2. Hobo128

    Gross and Net. Latent heat? Head scratcher

    Hi, Was having a read the other night and "the penny dropped" Not sure if I'm right though. Example: If I gas rate an appliance say an old combi boiler I get a gas rate in Gross which I then have to convert to Net because of latent heat (Something like 11% of heat is lost in flue gases) My...
  3. W

    Anyone know a source of grey head basin taps?

    I'm all googled out. Old chap has grey everything in his bathroom but the basin tap is knackered the old heads won't fit on modern revivers. He doesn't mind what type of tap (single pillar though, not mixer) or what shade of grey as there are various shades of grey in there, but it's kind of a...
  4. R

    Triton Electric Shower - Hose and Head Replacement

    Hi all, I am new to the forum and am wondering if anyone would be able to give me a bit of advice and suggestions with an electric Triton shower please? I am just piecing together my first ever quote, which happens to be a full bathroom refit, and the customer is looking to keep her Triton...
  5. kris

    Whos got a head like a burst couch

    Mornin guys i came into the arms for a swift one since i had a real quite one yesterday but WHO has woke up this morning vowing to never drink again or who cant remember what they did yesterday. (oh dear) . or anyone have a head like a burst sofa?? Or was there anyone like boring old me that...
  6. K

    Owwwwww my head

    Fecking migraines I forgot just how bad they are feck mine i haven't had one like this since my a levels. having basically spent the past three days comatose i'll be dragging my sorry arse to work tomorrow..... if gasman rob doesn't post up again on the forum Distinct possibility he made a...
  7. eagleeye

    positive head pump

    Can anybody tell me if I can convert a stuart turner monsoon (old model) to a negative head type by just teeing in a vessel between hot and cold flows at the pump. Obviously with check valves ??
  8. Kewat66

    Grohe automatic 2000 leaking from the shower head

    Hi All, i have a customer that has a Grohe automatic 2000 that is leaking from the shower head. I have found a place to get a new thermostatic cartridge but they also sell 2 oring sets? Question is do i go for the o rings from grohe? Are they the sort of company that have there own size o rings...
  9. B

    Boruit RJ-3000 head lamp

    just got this through the post today. very pleased with it...very powerful yet has a setting for soft lighting.. EDIT: Can someone please kindly move this to product reviews
  10. T

    Scratching my head Worcester heat-slave fault

    Hey guys hows it going? need a bit of help did not want to post in the public oil forum & its not a gas boiler so here I am. Greenstar Worcester heat-slave 18/25 oil Went to Look at a leaky boiler today - No prob's, leaking flow switch remade joins shes okay no leaks. Go to recommission the...
  11. M

    Had to come home to clear my head.

    Changing an immersion element and repairing a leak to a bog in a flat this morning. Half way through the job I could smell that the custard had sparked up a joint. Time I finished my head was spinning and I've had to nip home for a sit down to clear my head.
  12. cr0ft

    Narrowly missed a sore head today!

    Was fixing a light in the kitchen the plasterer I've started using has done the ceiling in. He's fixed timbers to lower the ceiling, plasterboarded it then 2 coats of skim. Came in this morning and the clue should have been a little crack all the way across. Half way through fixing the light...
  13. S

    Can't get tap head off!

    Anyone know the secret to getting these heads off?? Took screw out, tried to pull head off and stuck solid on both hot and cold. Don't know the make of tap although there is a swan logo on the head.
  14. A

    Good Head Torch

    Just took delivery of two...very decent even if it's just to keep in the van searching for tools. Lighthouse 3 Watt CREE Headlight Head Torch LED Headlight L/HHEAD3WATT | eBay
  15. K

    Triton Satellite Digital Shower with Fixed Head HP

    Hi I have a Triton Satellite Digital Shower with Fixed Head and remote control that feeds directly from a combination boiler. It worked fine for the first 11 months, then it started 'pulsing' the water out of the shower head. The water seems to drop slightly in temperature and then get warmer...
  16. M

    Combi pump head replacement

    Dont know if I am going to embarass myself here, replaced a faulty grundfoss pump head in a Vokera combi with another grundfoss head, any diff was wiring was on other side so new pump I had to fit (so the writing etc) was upside down...... However there was still a problem, can u just confirm...
  17. G

    Shower head and valve not centered in the shower box

    Need a bit of advice. I just moved into a house and yesterday I noticed that the shower head and valve are not centered. My first thought is that the timber is running in the center and they couldn't center the shower pipes for the head and valve. 1- Do you think that the above was the...
  18. D

    Part for Freehander shower head

    Hello. I am looking for advice on where I can purchase a part on aGrohe Freehander (27005)shower headset. This particular part is not labelled on the diagram,but isclearly visible. There is many replacement sections of the head that can bebought but this part does not fall into any of them that...
  19. W

    Ecocamel Orbit Water Saving Shower Head

    Hi folks, my own shower head has split and I've seen an offer for the new Ecocamel Orbit water saving head so have splashed out (pardon the pun) and will put a review up shortly. Just wondering if anyone else has tried them and can give any comments. I have sold plenty of the Jetstorm ones to...
  20. E

    7 head pump upgrade on an Intergas boiler

    I've got quite a longstanding problem with a 1.5 year old 18kw Intergas system boiler which takes over an hour to get all radiators hot - and even then they aren't scalding hot to the touch even though the water temp is set to 80 on the boiler. Potted history - it was a replacement boiler we...
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