Nuclear bomb tests released radioactive isotopes, such as Carbon-14, which spread globally through the air and food chain. As people formed bone and tooth tissue, Carbon-14 became absorbed into their skeletons, leaving a detectable chemical signature in humans born during and after the Atomic Age. #historytok #facts #nuclear #polishzach #fyp

1. Школьная биология врала нам красивую сказку: миллионы сперматозоидов бегут наперегонки, самый быстрый и сильный побеждает, яйцеклетка пассивно ждёт победителя. Эта история идеально вписывалась в патриархальную картину мира, где мужчина завоёвывает, а женщина принимает. Но когда учёные наконец смогли наблюдать процесс в реальном времени, они увидели нечто совершенно иное, и это заставило переписать учебники. 2. Яйцеклетка выделяет особые химические сигналы, своеобразные «приглашения», но вот п

Galileo Galilei (1564–1642) was an Italian scientist and one of the founders of modern science. #fffyyypppp

Explaining Biology on Instagram: "How Conception Works Conception is the process by which a pregnancy begins — when a sperm and an egg join to form a new life. Ovulation An ovary releases an egg once per cycle. The egg lives for about 12–24 hours. Sperm enters the body During intercourse, sperm travel through the reproductive tract and can live up to 5 days. Fertilization A sperm meets the egg in the fallopian tube and combines genetic material, forming a zygote. Cell division The zygote divides

World of Biology on Instagram: "We've all felt that pain - the kind that hits deep, whether it's in your body or your heart. Some pains can't be seen, only felt. But remember, every ache reminds you that you're still strong enough to feel and heal."

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