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.
Another bee product is the bee pollen. Bee pollen is a rich source of amino acids and vitamin B12, and it is widely reported to improve endurance, promote longevity, aid recovery from chronic illness, and help prevent disease.ropolis is sometimes called the âbee glueâ because bees collect the sap of polar buds and the resin of coniferous trees, mix it with enzymes, beeswax, and pollen and to use to repair cracks in the hive. Some physicians and veterinarians believe propolis has a stimulating effect on the thymus gland.