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2. Magnetic balls sold at Walmart recalled due to risk of ...

   www.aol.com/news/magnetic-balls-sold-walmart...

   The sets were sold online from Walmart between February 2022 and April 2023 for $14–15, the CPSC said. Magnetic Ball Recall (Consumer Product Safety Commission)

3. Medicine ball - Wikipedia

   en.wikipedia.org/wiki/Medicine_ball

   A medicine ball (also known as an exercise ball, a med ball, or a fitness ball) is a weighted ball whose diameter is about a shoulder-width (approx. 350 mm (13.7 in)), often used for rehabilitation and strength training. [1] The medicine ball also serves an important role in the field of sports medicine to improve strength and neuromuscular ...

4. Walmart recalls magnetic balls after CPSC warns of choking ...

   www.aol.com/walmart-recalls-magnetic-balls-cpsc...

   The toy kit was sold from February 2022 through April 2023 for between $14 and $15 and is made of small magnetic balls in purple, black, green, blue, orange and red. For more CNN news and ...

5. ‘I’m A Personal Trainer—And I Recommend This Medicine Ball To ...

   www.aol.com/m-personal-trainer-recommend...

   Here are the five best medicine balls of 2024, per a trainer. Medicine balls develop power, build strength, and increase endurance. Here are the five best medicine balls of 2024, per a trainer. ...

6. Wavelength-division multiplexing - Wikipedia

   en.wikipedia.org/wiki/Wavelength-division...

   Normal WDM (sometimes called BWDM) uses the two normal wavelengths 1310 and 1550 nm on one fiber. Coarse WDM provides up to 16 channels across multiple transmission windows of silica fibers. Dense WDM (DWDM) uses the C-Band (1530 nm-1565 nm) transmission window but with denser channel spacing. Channel plans vary, but a typical DWDM system would ...

7. Multi-mode optical fiber - Wikipedia

   en.wikipedia.org/wiki/Multi-mode_optical_fiber

   Some 200 and 400 Gigabit Ethernet speeds (e.g. 400GBASE-SR4.2) use wavelength-division multiplexing (WDM) even for multi-mode fiber [10] which is outside the specification for OM4 and lower. In 2017, OM5 has been standardized by TIA and ISO for WDM MMF, specifying not only a minimum modal bandwidth for 850 nm but a curve spanning from 850 to ...