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2. QRS Music Technologies - Wikipedia

   en.wikipedia.org/wiki/QRS_Music_Technologies

   QRS Music Technologies. QRS Music Technologies, Inc. is an American company that makes modern player pianos. It was founded as Q•R•S Music Company in 1900 to make piano rolls, the perforated rolls of paper read by player pianos to reproduce music. The company also produced shellac records in the 1920s and 1930s and radios beginning in the ...

3. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

4. QRS complex - Wikipedia

   en.wikipedia.org/wiki/QRS_complex

   QRS complex. Schematic representation of a normal sinus rhythm ECG wave. Diagram showing how the polarity of the QRS complex in leads I, II, and III can be used to estimate the heart's electrical axis in the frontal plane. The QRS complex is the combination of three of the graphical deflections seen on a typical electrocardiogram (ECG or EKG).

5. Nearly 100 people aboard P&O cruise ship sick in norovirus ...

   www.aol.com/75-people-aboard-p-o-152520993.html

   Updated September 24, 2024 at 2:35 PM. (This story was updated to add new information.) Nearly 100 people on a P&O Cruises sailing got sick in a norovirus outbreak. Among 1,959 passengers on the ...

6. TikTok is grilled by skeptical U.S. judges while making its ...

   www.aol.com/finance/tiktok-fights-life-argues...

   For roughly two hours this morning, lawyers for TikTok and the U.S. government fielded questions from judges who showed skepticism about whether the platform is entitled to display and moderate ...

7. The 15 best deals to score for your home at Wayfair's ... - AOL

   www.aol.com/lifestyle/wayfair-labor-day-sale...

   Lorraine TV Stand $205 $390 Save $185 This TV stand has an astounding 63,000 five-star reviews at Wayfair, where it's currently on sale for the low price of $205.