There are so many life lessons packed into baking a simple birthday cake or a blueberry muffin, and not just how to do fractions.
—
Elisabeth Sherman,
Parents,
30 Sep. 2025
Even if a harvester can outgas regolith reliably, separating minute traces of helium-3 from helium-4 and other gases at low mass fractions requires sophisticated cryogenic or membrane systems.
Examples are automatically compiled from online sources to
show current usage.Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Share