In typical rockets the mass ratio is between 10 and 30. Imagine a rocket with a total mass of 1 ton and a mass ratio of 1000: when empty, it would only weight one kg, including its cargo, while when full it would need to contain 999 kg of fuel!
Benefits of Bee Propolis For Skin Apparently, natural bee propolis is considered good for younger, acne prone skin, as well as more mature skin. Itâs now being used as a wrinkle fighter by what seems to be a growing number of women.
While promising, the results of these studies are preliminary. (Some of the studies were too small and too poorly designed to yield significant findings.) However, propolis does have proven antibiotic and antiseptic properties and may also have antiviral and anti-inflammatory effects. I consider it safe and useful as a home remedy. You can find it in various forms in health food stores or get the raw stuff from beekeepers.