Pine Cones are Sensitive to Humidity

To release their seeds at the ideal time, pine cones open and close their scales depending on the humidity in the air. Only when there the air is dry enough to send the seeds far do the scales open, releasing its winged pine seeds.

Resouce/Energy/Information Collection & Storage:: Season sensing

Transfer/Dispose/Circulate:: Flight

Form/Organization/System:: Opening and closing、Use of natural phenomena

Coexistence with nature

Nature 390, 668 (18 December 1997) How pine cones open

Pinecones’ ability to sense humidity has been used to develop

“smart fabric” fibers that control humidity in clothing.

History
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Request History
4 previous requests available
====
Session
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Session
- Config
  userAgent146b278961f0b80dc105e136efd48481
  time1735296021
  timeout10
====
Request
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Request

Cake Params
- controllercontents
- actionview
- named(empty)
- pass
 0126
- plugin(null)
- form(empty)
- url
 urlcontents/view/126
- isAjax(false)
$_GET
- urlcontents/view/126
Cookie
- 0(empty)
Current Route
- keys
 0controller
 1action
- options(empty)
- defaults
 plugin(null)
 actionindex
- template/:controller/:action/*
- _greedy(true)
- _compiledRoute#^/(?:([^/]+))/(?:([^/]+))(?:/(?P<_args_>.*))?[/]*$#
- __headerMap
 typecontent_type
 methodrequest_method
 serverserver_name
====

Sql Log

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Sql Logs

default

Query	Affected	Num. rows	Took (ms)	Actions
SHOW FULL COLUMNS FROM `contents`	16	16	3	maybe slow
SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.COLLATIONS WHERE COLLATION_NAME= 'utf8_general_ci';	1	1	9	maybe slow
SHOW FULL COLUMNS FROM `users`	10	10	2	maybe slow
SHOW FULL COLUMNS FROM `groups`	4	4	2	maybe slow
SHOW FULL COLUMNS FROM `permissions`	5	5	10	maybe slow
SHOW FULL COLUMNS FROM `groups_permissions`	3	3	2	maybe slow
SHOW FULL COLUMNS FROM `groups_users`	3	3	14	maybe slow
SHOW FULL COLUMNS FROM `contents_searches`	6	6	2	maybe slow
SHOW FULL COLUMNS FROM `attachments`	11	11	3	maybe slow
SHOW FULL COLUMNS FROM `attachments_revs`	13	13	15	maybe slow
SHOW FULL COLUMNS FROM `contents_related_items`	5	5	2	maybe slow
SHOW FULL COLUMNS FROM `related_items`	6	6	10	maybe slow
SHOW FULL COLUMNS FROM `contents_related_items_revs`	8	8	54	maybe slow
SHOW FULL COLUMNS FROM `contents_tags`	5	5	2	maybe slow
SHOW FULL COLUMNS FROM `tags`	7	7	2	maybe slow
SHOW FULL COLUMNS FROM `tag_groups`	6	6	4	maybe slow
SHOW FULL COLUMNS FROM `contents_tags_revs`	7	7	2	maybe slow
SHOW FULL COLUMNS FROM `contents_revs`	18	18	3	maybe slow
SELECT `Content`.`id`, `Content`.`user_id`, `Content`.`last_edit_user_id`, `Content`.`post_date`, `Content`.`post_date_year`, `Content`.`post_date_month`, `Content`.`post_date_day`, `Content`.`title`, `Content`.`title_en`, `Content`.`content`, `Content`.`plain_content`, `Content`.`page_view`, `Content`.`flag`, `Content`.`mod_count`, `Content`.`created`, `Content`.`modified` FROM `contents` AS `Content` WHERE `id` = 126 LIMIT 1	1	1	1
SELECT `Attachment`.`file_name`, `Attachment`.`dir`, `Attachment`.`model`, `Attachment`.`foreign_key` FROM `attachments` AS `Attachment` WHERE `file_name` <> 'default.jpg' AND `Attachment`.`foreign_key` = (126)	2	2	0
SELECT `ContentsRelatedItem`.`content`, `ContentsRelatedItem`.`related_item_id`, `ContentsRelatedItem`.`content_id` FROM `contents_related_items` AS `ContentsRelatedItem` WHERE `ContentsRelatedItem`.`content_id` = (126)	12	12	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 1	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 2	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 5	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 6	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 7	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 8	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 4	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 11	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 12	1	1	0
SELECT `ContentsTag`.`id`, `ContentsTag`.`tag_group_id`, `ContentsTag`.`mod_count`, `ContentsTag`.`tag_id`, `ContentsTag`.`content_id` FROM `contents_tags` AS `ContentsTag` WHERE `ContentsTag`.`content_id` = (126)	5	5	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 8	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 1	1	1	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 40	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 3	1	1	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 43	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 4	1	1	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 52	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 4	1	1	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 100	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 7	1	1	0
SELECT `RelatedItem`.`id`, `RelatedItem`.`code`, `RelatedItem`.`name`, `RelatedItem`.`created`, `RelatedItem`.`modified`, `RelatedItem`.`flag` FROM `related_items` AS `RelatedItem` WHERE `code` = 'function' LIMIT 1	1	1	0
SELECT `Content`.`id`, `Content`.`title`, `Content`.`title_en` FROM `contents` AS `Content` WHERE id = (NULL) ORDER BY `id` desc	0	0	0

Query Explain:

Click an "Explain" link above, to see the query explanation.

====

Timer

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Memory

Peak Memory Use 9.01 MB

Message	Memory use
Component intitailization	6.77 MB
Controller action start	6.83 MB
Controller render start	6.91 MB
View render complete	7.93 MB

Timers

Total Request Time: 1044 (ms)

Message	Time in ms	Graph
Core Processing (Derived)	501.51
Component initialization and startup	17.42
Controller action	56.90
Render Controller Action	69.97
» Rendering View	58.05
» » Rendering APP/views/contents/view.ctp	35.16
» » Rendering APP/views/layouts/default.ctp	19.98
» » » Rendering APP/views/elements/header.ctp	9.89
» » » Rendering APP/views/elements/content_sidebar.ctp	0.47
» » » Rendering APP/views/elements/footer.ctp	0.53

====

Log
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Logs

====
Variables
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 0To release their seeds at the ideal time, pine cones open and close their scales depending on the humidity in the air. Only when there the air is dry enough to send the seeds far do the scales open, releasing its winged pine seeds.
 ref_info
 0Nature 390, 668 (18 December 1997) How pine cones open
 reg_num
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 appl_tech
 0Pinecones’ ability to sense humidity has been used to develop
 product
 0“smart fabric” fibers that control humidity in clothing.
 appl_tech_sugg
 0
 img_exp
 0Photo by Momoko Minakawa. This piece is<a href="http://creativecommons.org/licenses/by-nc-sa/2.1/jp/" target="_blank">licensed under the Creative Commons License.</a> From the Amazing Nature Database.
 1The underside of an open pinecone is black. The seeds are housed between this black area and the topside of the pinecone. From the Amazing Nature Database.
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====

Pine Cones are Sensitive to Humidity

Request History

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Sql Logs

default

Query Explain:

Memory

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