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2. Spirograph - Wikipedia

   en.wikipedia.org/wiki/Spirograph

   Spirograph is a geometric drawing device that produces mathematical roulette curves of the variety technically known as hypotrochoids and epitrochoids. The well-known toy version was developed by British engineer Denys Fisher and first sold in 1965.

3. Pneumograph - Wikipedia

   en.wikipedia.org/wiki/Pneumograph

   A pneumograph, also known as a pneumatograph or spirograph, is a device for recording velocity and force of chest movements during respiration. Principle of operation

4. Denys Fisher - Wikipedia

   en.wikipedia.org/wiki/Denys_Fisher

   Between 1962 and 1964 he developed various drawing machines from Meccano pieces, eventually producing a prototype Spirograph. Patented in 16 countries, it went on sale in Schofields department store in Leeds in 1965. A year later, Fisher licensed Spirograph to Kenner Products in the United States. In 1967 Spirograph was chosen as the UK Toy of ...

5. Spirometry - Wikipedia

   en.wikipedia.org/wiki/Spirometry

   Doing spirometry. Spirometry (meaning the measuring of breath) is the most common of the pulmonary function tests (PFTs). It measures lung function, specifically the amount (volume) and/or speed (flow) of air that can be inhaled and exhaled.

6. Steak has many nutrients, but here's why you should avoid ...

   www.aol.com/steak-many-nutrients-heres-why...

   A six-ounce cut of top sirloin, for instance, contains calcium, selenium, niacin, vitamin B6, folate, and phosphorus, plus 646 milligrams of potassium and a whopping 51 grams of protein, per the U ...

7. Doctors Say This Is the Best, Most Effective Way to ... - AOL

   www.aol.com/doctors-best-most-effective-way...

   Doctors explain the safest and most effective way to blow your nose. Here, experts share how to remove mucus quickly and safely.

8. Where You Age Affects How You Age - Aging in their Own Words

   testkitchen.huffingtonpost.com/aging

   The global challenge we should be talking more about.

9. Peter Hubert Desvignes - Wikipedia

   en.wikipedia.org/wiki/Peter_Hubert_Desvignes

   As a young man in 1827 he had developed a so-called "Speiragraph", an early prototype for the spirograph. He evidently continued on with experiments and inventions, and on 27 February 1860 received British patent no. 537 for 28 monocular and stereoscopic variations of cylindrical stroboscopic devices (see zoetrope ). [ 7 ]