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2. Speed of light - Wikipedia

   en.wikipedia.org/wiki/Speed_of_Light

   For example, for visible light, the refractive index of glass is typically around 1.5, meaning that light in glass travels at ⁠ c / 1.5 ⁠ ≈ 200 000 km/s (124 000 mi/s); the refractive index of air for visible light is about 1.0003, so the speed of light in air is about 90 km/s (56 mi/s) slower than c.

3. Power tool - Wikipedia

   en.wikipedia.org/wiki/Power_tool

   [3] Airborne particulate matter is a Group 1 carcinogen. [4] Particulates are the most harmful form (other than ultra-fines) of air pollution [5] as they can penetrate deep into the lungs and brain from blood streams, causing health problems such as heart disease, lung disease, and premature death. [6] There is no safe level of particulates.

4. DeWalt - Wikipedia

   en.wikipedia.org/wiki/DeWalt

   [2] DeWalt is now a popular brand of tools for commercial contractors. In 2004, Black and Decker bought rival power tool manufacturer Porter-Cable and combined it with DeWalt in Jackson, Tennessee. [3] In 2011, DeWalt launched a line of contractors' hand tools (including utility knives, pliers, adjustable wrenches, tape measures, saws, and ...

5. Fizeau's measurement of the speed of light in air - Wikipedia

   en.wikipedia.org/wiki/Fizeau's_measurement_of_the...

   At 3 times the speed it was again eclipsed. [3] [4] Given the rotational speed of the wheel and the distance between the wheel and the mirror, Fizeau was able to calculate a value of 2 × 8633m × 720 × 25.2/s = 313,274,304 m/s for the speed of light. Fizeau's value for the speed of light was 4.5% too high. [5] The correct value is 299,792,458 ...

6. Play Slots Lounge Online for Free - AOL.com

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   Free premium casino-style slots and classic video poker by the creators of authentic PC & Mac casino slots from IGT, WMS Gaming, and Bally!

7. Trump will not rule out force to take Panama Canal, Greenland

   www.aol.com/news/trump-wont-rule-military...

   U.S. President-elect Donald Trump refused on Tuesday to rule out using military or economic action to pursue acquisition of the Panama Canal and Greenland, part of a broader expansionist agenda he ...

8. Air pump - Wikipedia

   en.wikipedia.org/wiki/Air_pump

   An air pump is a pump for pushing air. Examples include a bicycle pump , pumps that are used to aerate an aquarium or a pond via an airstone ; a gas compressor used to power a pneumatic tool , air horn or pipe organ ; a bellows used to encourage a fire; a vacuum cleaner and a vacuum pump .

9. The #1 High-Protein Snack for Better Heart Health, According ...

   www.aol.com/1-high-protein-snack-better...

   In one study, people who ate roughly 1 to 2 ounces of walnuts daily for one year experienced a significant decrease in LDL cholesterol. Nutrients to Focus On for Heart Health Plant-Based Protein.