Vol. 5. Elsevier Scientific Publishing Company > 자유게시판

본문 바로가기
사이트 내 전체검색

설문조사

유성케임씨잉안과의원을 오실때 교통수단 무엇을 이용하세요?

 

 

 

자유게시판

칭찬 | Vol. 5. Elsevier Scientific Publishing Company

페이지 정보

작성자 Emelia 작성일25-10-25 17:28 조회3회 댓글0건

본문

grain-field-free-image.jpgA fly-killing device is used for pest management of flying insects, summer mosquito protection such as houseflies, wasps, moths, summer mosquito protection gnats, and mosquitoes. 10 cm (four in) throughout, hooked up to a handle about 30 to 60 cm (1 to 2 ft) lengthy manufactured from a lightweight materials akin to wire, wooden, plastic, or metallic. The venting or perforations reduce the disruption of air currents, that are detected by an insect and allow escape, and also reduces air resistance, making it simpler to hit a fast-transferring goal. The flyswatter often works by mechanically crushing the fly towards a tough surface, after the user has waited for the fly to land somewhere. However, summer mosquito protection users also can injure or best bug zapper portable bug zapper for summer mosquito protection camping stun an airborne insect mid-flight by whipping the swatter by means of the air at an excessive velocity. The abeyance of insects by use of brief horsetail staffs and fans is an historic practice, relationship back to the Egyptian pharaohs.



angle-view-outdoor-electric-mosquito-andThe earliest flyswatters had been in reality nothing greater than some sort of striking surface connected to the top of an extended stick. An early patent on a business flyswatter was issued in 1900 to Robert R. Montgomery who referred to as it a fly-killer. Montgomery bought his patent to John L. Bennett, a wealthy inventor and industrialist who made further enhancements on the design. The origin of the identify "flyswatter" comes from Dr. Samuel Crumbine, a member of the Kansas board of health, who wanted to lift public awareness of the health issues brought on by flies. He was inspired by a chant at an area Topeka softball recreation: "swat the ball". In a well being bulletin revealed quickly afterwards, he exhorted Kansans to "swat the fly". In response, a schoolteacher named Frank H. Rose created the "fly bat", a machine consisting of a yardstick connected to a piece of display, which Crumbine named "the flyswatter". The fly gun (or flygun), a derivative of the flyswatter, uses a spring-loaded plastic projectile to mechanically "swat" flies.

hq720.jpg

Mounted on the projectile is a perforated circular disk, which, according to promoting copy, "won't splat the fly". Several similar products are offered, largely as toys or novelty items, summer mosquito protection although mmed with beer or vinegar, into which the flies fall and drown. In the past, the trough was typically filled with a harmful mixture of milk, water, and arsenic or mercury chloride. Variants of these bottles are the agricultural fly traps used to fight the Mediterranean fruit fly and the olive fly, which have been in use since the thirties. They're smaller, without ft, and the glass is thicker for summer mosquito protection tough outdoor utilization, usually involving suspension in a tree or bush. Modern variations of this machine are sometimes made of plastic, and might be bought in some hardware stores.

추천 0 비추천 0

댓글목록

등록된 댓글이 없습니다.


회사소개 개인정보취급방침 서비스이용약관 모바일 버전으로 보기 상단으로


대전광역시 유성구 계룡로 105 (구. 봉명동 551-10번지) 3, 4층 | 대표자 : 김형근, 김기형 | 사업자 등록증 : 314-25-71130
대표전화 : 1588.7655 | 팩스번호 : 042.826.0758
Copyright © CAMESEEING.COM All rights reserved.

접속자집계

오늘
7,809
어제
14,648
최대
18,908
전체
6,418,606
-->
Warning: Unknown: write failed: Disk quota exceeded (122) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/home2/hosting_users/cseeing/www/data/session) in Unknown on line 0