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Bulb

Bulb

a modified underground stem which has one or more buds enclosed in fleshy modified leaves or scales which supply energy to the bud when they start to grow, onions and tulips have bulbs. Lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata); the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning.


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Re: Photosynthesis Experiment - Do LED's work?

Hi, Does anyone know if using a battery powered LED light instead of an ordinary 40W bulb will work as well for a standard photosynthesis rate experiment? (we currently use a short section of Elodea in water and a lamp). Thanks Do these lights work? I am looking to ...

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by GregoryStevens
Wed Sep 04, 2013 11:32 am
 
Forum: Botany Discussion
Topic: Photosynthesis Experiment - Do LED's work?
Replies: 8
Views: 6946

Re: growing bacteria in petri dishes

... it at 37C. How you are going to maintain that is the biggest question now. :wink: Take a woonden box, make hole in it so that a small electric bulb can fit into it. Wrap it with black paper. Keep the plates inverted under wooden box and on the light... and off that after half an hour .... try ...

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by greatmicrobiologist
Sun Mar 10, 2013 2:30 pm
 
Forum: Microbiology
Topic: growing bacteria in petri dishes
Replies: 8
Views: 26173

Investigation into aspect of plant physiology

What's so special you need for photoperiodims? Just light bulb, power cabel and some timer.

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by JackBean
Tue Feb 14, 2012 9:20 am
 
Forum: Botany Discussion
Topic: Investigation into aspect of plant physiology
Replies: 6
Views: 3092

Investigation into aspect of plant physiology

... with exact volume of water and maybe even close them somewhere. As for photoperiodism, do you think you need to stand above the plant and hold the bulb to be sure it!s lightning? :roll: Just take some room, where you're sure nobody's going too often and which has no windows (or you can seal them), ...

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by JackBean
Mon Feb 13, 2012 7:11 am
 
Forum: Botany Discussion
Topic: Investigation into aspect of plant physiology
Replies: 6
Views: 3092

A question about insects ?

... to detect the moonlight. They appear brighter, and radiate their light in multiple directions. Once an insect flies close enough to a light bulb, it attempts to navigate by way of the artificial light, rather than the moon. Since the light bulb radiates light on all sides, the insect simply ...

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by sachin
Thu Feb 02, 2012 12:01 pm
 
Forum: Zoology Discussion
Topic: A question about insects ?
Replies: 3
Views: 2206
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