CINTA NEGARAMU CINTA NEGARAKU (176) ALLAH PENCIPTA YANG MAHA BIJAKSANA TIADA SIAPA YANG DAPAT MENANDINGI-NYA
Indra Utama Nasution shared OK květiny's photo.
4 hrs ·
Que el Jardín entre a tu Hogar SAH
Sociedad Argentina de Horticultura
Desde 1936 al servicio de la comunidad
Sociedad Argentina de Horticultura
Desde 1936 al servicio de la comunidad
Sociedad Argentina de Horticultura added 5 new photos — with Ana Beatriz and 125 others.
6 hrs ·
Buenas noches amigos SAH, gracias por acompañarnos.
En la fotografía: Prunus sp
En la fotografía: Prunus sp
Sociedad Argentina de Horticultura
Desde 1936 al servicio de la comunidad
Desde 1936 al servicio de la comunidad
ECSST Science of the day
What do you think members?
The Secret Of A Tiger's Roar
Date: December 29, 2000
Source: American Institute of Physics -- Inside Science News Service
Summary: Researchers may have found the key to the intimidating and paralyzing affect that a tiger's roar has on animals, including humans. New research by bio acousticians shows that very low frequency sounds may be the key.
Date: December 29, 2000
Source: American Institute of Physics -- Inside Science News Service
Summary: Researchers may have found the key to the intimidating and paralyzing affect that a tiger's roar has on animals, including humans. New research by bio acousticians shows that very low frequency sounds may be the key.
A tiger's intimidating roar has the power to paralyze the animal that hears it and that even includes experienced human trainers. Elizabeth Von Muggenthaler, a bioacoustician from the Fauna Communications Research Institute in North Carolina, presented her research at the Acoustical Society of America meeting in Newport Beach, California on December 7. Bioacoustics is the study of the frequency or pitch, loudness, and duration of animal sounds to learn about an animal's behavior. At the meeting, Von Muggenthaler discussed her work analyzing the frequency of tiger sounds to better understand the part of a tiger's roar that we can feel, but can't hear.
Why study something that we can't hear?
"Humans can only hear some of the sounds that tigers use to communicate," says Von Muggenthaler. "Humans can hear frequencies from 20 hertz to 20,000 hertz, but whales, elephants, rhinos, and tigers can produce sounds below 20 hertz." This low-pitched sound, called "infra sound," can travel long distances permeating buildings, cutting through dense forests, and even passing through mountains. The lower the frequency, the farther the distance the sound can travel. Scientists believe that infra sound is the missing link in studying tiger communication.
In the first study of its kind, Von Muggenthaler and her colleagues recorded every growl, hiss, chuff, and roar of twenty-four tigers at the Carnivore Preservation Trust in Pittsboro, North Carolina, and the Riverbanks Zoological Park in Columbia, South Carolina. Bioacousticians found that tigers can create sounds at about 18 hertz and when tigers roar they can create frequencies significantly below this. "When a tiger roars-the sound will rattle and paralyze you," says Von Muggenthaler. "Although untested, we suspect that this is caused by the low frequencies and loudness of the sound."
When the researchers played back a tape of recorded tiger sounds including audible and infra sounds, the tigers appeared to react to these sounds. Sometimes they would roar and leap towards the speakers and sometimes sneak away. The next step for Von Muggenthaler is to take the recorded infra sounds to scientists who can determine whether or not tigers can hear the infra sounds. Von Muggenthaler hopes to learn more about tigers, protect them from extinction, and understand the unheard, paralyzing power in their roar.
Story Source:
The above story is based on materials provided by American Institute of Physics -- Inside Science News Service.
Note: Materials may be edited for content and length.
The above story is based on materials provided by American Institute of Physics -- Inside Science News Service.
Note: Materials may be edited for content and length.
READ FULL ARTICLE AT: http://www.sciencedaily.com/releases/2000/…/001201152406.htm
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ECSST (Endangered Cat Species Survival Trust)
Homepage: http://www.ecsst.org
(in the process of updating with lots of information
regarding endangered cat species in the wild and our entire project, our photographers, cat species etc.)
Facebook: http://www.facebook.com/Endangeredcatspecies
Twitter: https://twitter.com/ECSST777
Photographers group: http://www.facebook.com/groups/332219533550937/
Homepage: http://www.ecsst.org
(in the process of updating with lots of information
regarding endangered cat species in the wild and our entire project, our photographers, cat species etc.)
Facebook: http://www.facebook.com/Endangeredcatspecies
Twitter: https://twitter.com/ECSST777
Photographers group: http://www.facebook.com/groups/332219533550937/
Rabeah Binti Mohd Ali posted in 3 groups.
- 2 mins ·LADANG SASTERA UNGU KURNIAAN ILAHI YANG MEMUKAU ALLAHU AKBAR INDAH-NYA
HINGGA AKU TENGGELAM DALAM DUNIA SASTERAKU ANUERAH DARI-NYA YANG KUSYUKURI SEBANYAK-BANYAK-NYA
Campos de color y aroma a lavanda. Francia.Sociedad Argentina de Horticultura
Desde 1936 al servicio de la comunidad - Rabeah Binti Mohd Ali shared a photo to the group Sri Pemangku Adat.3 mins ·Campos de color y aroma a lavanda. Francia.Sociedad Argentina de Horticultura
Desde 1936 al servicio de la comunidad - See All
LADANG SASTERA UNGU KURNIAAN ILAHI YANG MEMUKAU ALLAHU AKBAR INDAH-NYA
HINGGA AKU TENGGELAM DALAM DUNIA SASTERAKU ANUERAH DARI-NYA YANG KUSYUKURI SEBANYAK-BANYAK-NYA
HINGGA AKU TENGGELAM DALAM DUNIA SASTERAKU ANUERAH DARI-NYA YANG KUSYUKURI SEBANYAK-BANYAK-NYA
Campos de color y aroma a lavanda. Francia.
Sociedad Argentina de Horticultura
Desde 1936 al servicio de la comunidad
Desde 1936 al servicio de la comunidad
Rabeah Binti Mohd Ali shared a photo to the groupPUJANGGA RATU RIMBA CINTA 5 BENUA.
8 mins ·
MOGA TUANKU BAHAGIA HINGGA KE JANNAH AAMIIIN
Ibn-Qayyim If a person is sincere towards Allah in all his affairs, Allah will give him more than He gives to others, and this sincerity results from true love of Allah and true trust in Him. So the most sincere of people is the one who is loves Allah most and puts most trust in Him. Al-Fawaa’id, p. 186, 187
En la fotografía: Hibiscus 'Black Dragon'
Sociedad Argentina de Horticultura
Desde 1936 al servicio de la comunidad
Desde 1936 al servicio de la comunidad
Nabi SAW : Kamu jangan BOHONG
Baduy : lalu?
Nabi SAW : Kamu jangan BOHONG, sudah kamu pulang ke kampungmu..
Lalu Pulanglah Pemimpin Perampok-sang Baduy itu....tatkala ia mau melakukan kejahatannya, ia ingat pesan Nabi SAW, Kamu jangan BOHONG...ahirnya..ia tinggalkan semua kejahatannya...jadilah ia PEMIMPIN YANG JUJUR !!!
#Imam_Masgartha_Kuartanegara
Rabeah Binti Mohd Ali shared a photo to the groupPUJANGGA RATU RIMBA CINTA 5 BENUA.
20 mins ·
Garang Raja Rimba Niagara kena pada tempatnya apabila keamanan Rimba Niagara cuba ganggu gugat!!!
ECSST Science of the day
What do you think members?
Rabeah Binti Mohd Ali shared La Bioguia's status update.
La Bioguia added 4 new photos.
Los Koalas viven en el este y sur de Australia. La mayor parte del tiempo lo pasan trepados a los árboles de eucalipto, su alimento preferido. Tienen hábitos de escasa actividad, llegan a dormir hasta 20 horas por día.
La Bioguia added 4 new photos.
Los Koalas viven en el este y sur de Australia. La mayor parte del tiempo lo pasan trepados a los árboles de eucalipto, su alimento preferido. Tienen hábitos de escasa actividad, llegan a dormir hasta 20 horas por día.
Demi sesungguhnya, ia telah melihat sebahagian dari sebesar-besar tanda-tanda (yang membuktikan luasnya pemerintahan dan kekuasaan) Tuhannya.
(QURAN: 53:18).
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