The strength (frequency) or power of the sound that human ear can hear is measured in terms of Hertz Human can hear sound frequen cies between 20 to 20,000 Hertz. Any frequency beyond 20,000 Hertz is called Ultrasound as human cannot hear. Some animals can hear high frequency sounds (ex-Dogs and bats). In medical Ultrasound we use that we cannot hear which are measured in Mega Hertz.
Henna (mehndi)
14 years ago
2 comments:
Hi,
I happen to visit your site and I must congratulate you for your efforts in putting up such an excellent effort in terms of design and also content available on your site.
I would appreciate if you can link back to my site:
http://www.jazdhealthcare.com/
I would also place a link to your site along with a description at http://www.jazd.net/directory/. If you want the description of your site modified or if you have any other cross-promotional ideas, let me know.
Thank you,
JAZD Partner Directory Administration Team
http://www.jazdchemicals.com/
(978) 470-4620 x400
links@jazd.net
Please add your link to all 9 of our B2B Directories:
http://www.jazd.net/directory/
http://www.jazdchemicals.com/partners/
http://www.jazdlifesciences.com/partners/
http://www.jazdhealthcare.com/partners/
http://www.jazdoilandgas.com/partners/
http://www.jazdcommunications.com/partners/
http://www.jazdtech.com/partners/
http://www.jazdnightclubandbar.com/partners/
http://www.jazdhotels.com/partners/
Email us with your reciprocal link location(s) so we can approve the request. You will only be approved for one link partnership per domain. Please contact us if you have more than 9 websites with linking opportunities.
I recently came across your blog and have been reading along. I thought I would leave my first comment. I don't know what to say except that I have enjoyed reading. Nice blog. I will keep visiting this blog very often.
Sports Physical Therapy
Post a Comment