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2. List of Mullard–Philips vacuum tubes - Wikipedia

   en.wikipedia.org/wiki/List_of_Mullard–Philips...

   This is a list of European Mullard–Philips vacuum tubes and their American equivalents. Most post-war European thermionic valve (vacuum tube) manufacturers have used the Mullard–Philips tube designation naming scheme.

3. Shell-and-tube heat exchanger - Wikipedia

   en.wikipedia.org/wiki/Shell-and-tube_heat_exchanger

   A shell-and-tube heat exchanger is a class of heat exchanger designs. [1] [2] It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure applications. As its name implies, this type of heat exchanger consists of a shell (a large pressure vessel) with a bundle of tubes ...

4. Spirax Group - Wikipedia

   en.wikipedia.org/wiki/Spirax_Group

   Spirax Group plc, formerly Spirax-Sarco Engineering plc, is a British manufacturer of steam management systems and peristaltic pumps and associated fluid path technologies. It is headquartered in Cheltenham, England. It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.

5. Shell V-Power - Wikipedia

   en.wikipedia.org/wiki/Shell_V-Power

   An Audi R10 TDI LMP race car, fueled on Shell V-Power Diesel. V-Power Diesel is Shell's version of an enhanced diesel fuel, similar to BP's 'Ultimate Diesel'. Like BP Ultimate Diesel, Shell V-Power Diesel is designed for modern compression-ignition diesel engines, to facilitate enhanced engine performance along with increased engine protection, for more consistent operation and engine longevity.

6. Joe Rogan says he’s ‘genuinely concerned’ about drone ...

   www.aol.com/news/joe-rogan-says-genuinely...

   Joe Rogan says he’s ‘genuinely concerned’ about drone sightings after new theory emerges

7. Common ethanol fuel mixtures - Wikipedia

   en.wikipedia.org/wiki/Common_ethanol_fuel_mixtures

   One measure of alternative fuels in the U.S. is the "gasoline-equivalent gallon" (GEG). In 2002, the U.S. used as motor fuel, ethanol equal to 137,000 terajoules (3.8 × 10 10 kWh), the energy equivalent of 1.13 billion US gallons (4.3 gigalitres) of gasoline. This was less than 1% of the total fuel used that year.