Quick Search


Tibetan singing bowl music,sound healing, remove negative energy.

528hz solfreggio music -  Attract Wealth and Abundance, Manifest Money and Increase Luck



 
Your forum announcement here!

  Free Advertising Forums | Free Advertising Board | Post Free Ads Forum | Free Advertising Forums Directory | Best Free Advertising Methods | Advertising Forums > Free Advertising Forums Directory > Internet Marketing Forums

Internet Marketing Forums This is a list of Internet Marketing Forums that have a FREE Advertising Section that you can post your ads in.

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-07-2011, 12:55 AM   #1
qingfenf123
Master Sergeant
 
Join Date: Mar 2011
Posts: 138
qingfenf123 is on a distinguished road
Default Choosing a Night Vision Rifle Scope

(Anchortex-AOG-2010-0001)

Hunters,http://www.gadvoutpost.com/gai/index...6910#msg206910, wildlife management officers, and game control agencies often use night vision rifle scopes and other night vision equipment to assist in deer hunting, varmint control,http://www.canfriends.com/eland2wmy/blog/211566/, and other activities that are easier at night. The right night vision scope can make the difference between a perfect shot and the buck that got away.

Night vision systems are rated in terms of Generation,http://www.msainion.byethost18.com/b...ja-250R-Review, or Gen for short. There are three broad Generation levels, each signifying a significant leap in technological development over the previous generation of night vision equipment.

Generation 1

Generation 1 night vision equipment is designed to function under standard ambient light conditions (moonlight or starlight) or with sufficient IR illumination. It typically makes use of an S-20 photocathode with average photosensitivity of 180-200 µA/lm coupled with electron acceleration to achieve gain. Generation 1 devices are known to suffer from geometric distortion (the fish-eye effect). Gen 1 image intensifiers have a duty cycle of approximately 1,500 hours of continuous operation.

Generations 2, 2+ and Super Gen

Generation 2 devices are prone to significantly less distortion than Gen 1 devices, and provide better-than-satisfactory performance under standard low-light levels. They usually rely on an extended-red S-25 photocathode (with minimum photosensitivity of 240 µA/lm), plus a microchannel plate to achieve gain. European 'Super Gen' tubes represent the high end of Generation 2 night vision,http://icatanduanes.com/blog.php?use...ntry_id=111163, achieving performance levels similar to early Gen 3 intensifier equipment. Gen 2 image intensifiers have a duty cycle of approximately 2,500 to 3,000 hours of continuous operation.

Generation 3

The most advanced level of night vision technology currently available, Gen 3 uses gallium-arsenide photocathodes with photosensitivity of more than 800 µA/lm in the 450 to 950 nanometer (near infrared) region of the spectrum, with a microchannel plate for gain. An ion barrier film coats the microchannel plate, extending the life of the end product. Gen 3 night vision provides excellent performance even under extreme low light levels. Mil-spec versions of Generation 3 night vision equipment have practically no perceptible distortion, while even civilian equipment provides substantial advantages in clarity over its predecessors. A typical Generation 3 image intensifier has a duty cycle of approximately 10,000 hours of continuous operation.

Each generation of night vision equipment offers a significant improvement in functional range, expected lifespan, and image resolution over its predecessor. A top-of-the-line commercial Generation 3 rifle scope such as the Night Optics D-760-3A ( can withstand the recoil of heavy-caliber weapons while providing target recognition out to a quarter of a mile away, ensuring that even at night, you'll be aiming at the right target.

With hunting season approaching, now is an excellent time to invest in a new night vision scope, high-visibility outdoor wear, hiking boots, and other survival and outdoor gear. If this article has inspired you, we encourage you to visit our website at for these and other tools. In addition to our listed brands,http://www.gsmdunyasi.net/showthread...146#post720146, we have products from over 120 manufacturers to suit your needs on your next hunting trip - just call for quotes.


About The Author
Austin Cushing is the webmaster at - a division of Anchortex Corporation. Receive $10 off of any purchase over $100 by entering code ASP10 at our shopping cart (offer valid indefinitely but subject to change). To track all articles written by Austin Cushing, check out the Anchortex Blog at .
qingfenf123 is offline   Reply With Quote

Sponsored Links
Old 05-07-2011, 12:57 AM   #2
a2bzyoc3
General of the Army
 
Join Date: Mar 2011
Posts: 1,698
a2bzyoc3 is on a distinguished road
Default

1. 爱因斯坦:当蜜蜂消失的时候 人类最多活四年
作者:刘侠
如果没有了蜜蜂,人类还能存在多久?爱因斯坦曾预言:“如果蜜蜂从世界上消失了,人类也将仅仅剩下4年的光 阴!”因为,在人类所利用的1330种作物中,有1000多种需要蜜蜂授粉。如果蜜蜂太少了,人们将告别多 少粮棉、油料、瓜果?

多国蜜蜂集体失踪

据报道,去年秋天,人们最先在美国发现这一神秘现象,一些养蜂者报告说,他们的蜜蜂失踪数量高 达95%。

此外,美国22个州的养蜂企业,也报告说有数万只蜜蜂失踪。如今,美国西海岸的养蜂企业已经损失大约60% 的蜜蜂,而东海岸则有70%的蜜蜂消失。

如今,蜜蜂消失现象又像瘟疫一样传到了德国、瑞士、西班牙、葡萄牙、意大利和希腊。在西班牙,目前已有报告 称数千个蜂群失踪。

在瑞士,大约40%的蜜蜂已经失踪或死亡。英国各地的养蜂者也都发现,在没有疾病等明显原因的情况下,大量 蜜蜂舍弃“家园”而去,光在苏格兰就有数千只蜜蜂神秘“失踪”。

造成全世界蜜蜂减少的原因很多,其中固然有自然灾害、天敌捕食、病害肆虐等自然因素,但蜂群一 般尚能承受,Mbt beach,保持总数平衡;但人为因素的加入,使蜜蜂不堪忍受,数量大减。

种种人为因素包括滥施农药、人造转基因作物、电磁波干扰甚至战争等,mbt shoes clearance

但真正原因至今不详。

这种奇怪现象发现于2009年,距离2012年恰好4年。

中国,看好自己的蜜蜂。转基因主粮,请缓行。长江,mbt lami shoes,难言之痛。
********************************************
2. 网易科技:
爱因斯坦:没有蜜蜂,人类最多活四年
手机和其他高科技装置发出的辐射可能是导致蜜蜂突然消失的原因,因为手机发出的辐射干扰了蜜蜂的导航系统, 令它们无法找到回蜂巢的路。
如果没有了蜜蜂,人类还能存在多久?
爱因斯坦曾预言:“如果蜜蜂从世界上消失了,人类也将仅仅剩下4年的光阴!”因为,在人类所利用的1330 种作物中,有1000多种需要蜜蜂授粉。如果蜜蜂太少了,人们将告别多少粮棉、油料、瓜果?
蜜蜂种群正在急剧减少
据英国《独立报》十五日报道:一些科学家表示,人们对手机的热爱可能会导致全球农作物失收,从而造成大规模 的缺粮。他们提出的理论是,手机和其他高科技装置发出的辐射可能是导致蜜蜂突然消失的原因,因为手机发出的 辐射干扰了蜜蜂的导航系统,令它们无法找到回蜂巢的路。尽管听起来不可思议,但现已有证据支持这个理论。据 报道,cheap mbt shoes,去年秋天,人们最先在美国发现这一神秘现象,现在美国西海岸的养蜂企业已经损失大约60%的蜜蜂,而东海 岸则有70%的蜜蜂消失。如今,蜜蜂消失现象又像瘟疫一样传到了德国、瑞士、西班牙、葡萄牙、意大利、希腊 和英国。
蜂群衰竭失调(Colony CollapseDisorder)现象是指一个蜂巢的居民突然消失,只剩下蜂后、蜂卵和一些未成熟的工蜂 。消失的蜜蜂下落不明,相信是在远离蜂巢的地方孤独地死亡。通常在一个蜂群死亡后,掠夺剩余蜂蜜和花粉的野 生生物及其他蜜蜂都拒绝接近被遗弃的蜂巢。
中国专家怎么看?
中国农业科学院蜜蜂研究所研究员杨冠煌曾告诉记者说,mbt tatage shoes uk,人类食物中约1/3是直接和间接来源于昆虫授粉的植物。蜜蜂是主要授粉昆虫,占授粉总量的60%以上。蜜蜂对生态具有平衡作 用,特别是对高寒山区的种群有影响。华北地区很多树种都是早春或是晚秋开花,有的则是零零星星开花,如果没 有蜜蜂,这类植物的受粉就受影响。由于多种原因导致的我国蜜蜂的减少或绝灭,破坏了我国固有的自然生态体系 ,使植物多样性减少,从而影响其他生物种群的变化,mbt chapa shoes。如由植物种类众多的杂木林森林向植物单调的松杉林转化,导致依靠植物生存的昆虫种类减少,以及使鸟类减少 等,从而引发害虫大量发生。
a2bzyoc3 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT. The time now is 07:13 AM.

 

Powered by vBulletin Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Free Advertising Forums | Free Advertising Message Boards | Post Free Ads Forum