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2. Descent propulsion system - Wikipedia

   en.wikipedia.org/wiki/Descent_propulsion_system

   [9]: 4 The helium was pressure regulated down to 246 psi (1.70 MPa) for the propellant tanks. [9]: 4 This allowed a sufficient inventory of pressurant gas to be stored in a relatively small volume, with a much lighter tank than would have been required to store the helium as a room temperature gas. The system was also equipped with a burst disk ...

3. Trimix (breathing gas) - Wikipedia

   en.wikipedia.org/wiki/Trimix_(breathing_gas)

   For example, a mix named "trimix 10/70" or trimix 10/70/20, consisting of 10% oxygen, 70% helium, 20% nitrogen is suitable for a 100-metre (330 ft) dive. Hyperoxic trimix is sometimes referred to as Helitrox, TriOx, or HOTx (High Oxygen Trimix) with the "x" in HOTx representing the mixture's fraction of helium as a percentage.

4. Autogenous pressurization - Wikipedia

   en.wikipedia.org/wiki/Autogenous_pressurization

   Cutaway of Space Shuttle external tank. Autogenous pressurization is the use of self-generated gaseous propellant to pressurize liquid propellant in rockets.Traditional liquid-propellant rockets have been most often pressurized with other gases, such as helium, which necessitates carrying the pressurant tanks along with the plumbing and control system to use it.

5. 10 Best Walmart Items To Buy for Less Than $10 - AOL

   www.aol.com/10-best-walmart-items-buy-130009525.html

   Walmart has been offering some particularly good deals lately that are pretty hard to pass up. Stock up on some of your essentials, or treat yourself to something you might not need, but absolutely...

6. Pressure-fed engine - Wikipedia

   en.wikipedia.org/wiki/Pressure-fed_engine

   Pressure-fed rocket cycle. Propellant tanks are pressurized to directly supply fuel and oxidizer to the engine, eliminating the need for turbopumps. The pressure-fed engine is a class of rocket engine designs. A separate gas supply, usually helium, pressurizes the propellant tanks to force fuel and oxidizer to the combustion chamber. To ...

7. You can save big on gas during Walmart+ Week: Members ... - AOL

   www.aol.com/lifestyle/you-can-save-big-on-gas...

   If I fill up my tank even once a week, on average, I can save $100 a year on fuel with the 10 cent discount. And during Walmart+ Week, the double discounts make traveling by car even cheaper. Walmart

8. 10 Walmart Brand Grocery Items That Are Often Cheaper at Aldi

   www.aol.com/10-walmart-brand-grocery-items...

   TikTok creator @__curtdogg received 4.4 million views on a video comparing the prices at Walmart in 2020 to prices from 2023. In the video, he went through a Facebook post from a customer who ...

9. Gas blending for scuba diving - Wikipedia

   en.wikipedia.org/wiki/Gas_blending_for_scuba_diving

   All helium, and some of the oxygen is provided by decanting or boosting from bulk cylinders. The amount of helium that must be decanted is very simple to calculate: Multiply the desired gas fraction of helium (F He) by the total filling pressure (P tot) to get partial pressure of helium (P He). In the case of the Tx 20/40, in a 230 bar cylinder ...