Libre Office Application Software on Linux Open Suse

Office application on Linux and open source software is Libre Office . You can download libre office software from libreoffice.org

Or you can get Libre Office from package Linux Open Suse or other Linux distros, such as ubuntu, gentoo, archlinux, etc.

Libre Office is text manipulation software for office, education. With Libre office will help you manipulating text and data, and presenting for works office purpose, make Letter, agenda, fax, presentation, even writing books and e-book and covert it to pdf file.  Create html documents, send document via email and bluetooth.

You can give digital signatures to your documents.  

Electronic Stethoscope Circuit

 

Electronic Stethoscope Circuit 

Using 1 BC548 Transistor  ,and several passive components , and Buzzer 1 also 4,5 V Battery . Source Elektor Electronic

The modern digital stethoscope as The 3M Littmann CORE Digital Stethoscope features the outstanding acoustics, comfort and quality of a Littmann cardiology-grade stethoscope enhanced by powerful digital technology. Features like up to 40x amplification* and active noise cancellation can help you auscultate with greater confidence. The Littmann CORE Digital Stethoscope connects with Eko software on a smart device** to visualize, record and share data.

*40X amplification based on comparison of analog versus electronically assisted amplified listening with maximum volume at the peak frequency(125 Hz). Check it Out !