Search results for “carbon cycle”

Are carbon nanotubes safe or harmful?

Carbon nanotubes, or CNT, are being used to make products stronger, lighter, faster, and more efficient. But are they safe? A growing body of research is raising concerns over the hazards presented by some forms of the material. As ever though, the risk to health depends on who is exposed to what

The menstrual cycle

From the first menstruation until menopause, a hormonal cycle regulates the female body to prepare it for a possible pregnancy. The cycle can be divided into different phases. Author: ZDF/TerraX/Anke Plascher/Ellen Haas/Anna-Lena Neidlinger/MUSIC Maximilian Mohr Translation and dubbing: alugha Cl

The menstrual cycle

The menstrual cycle begins between the ages of 9 and 13. It brings physical and hormonal changes into four phases: menstruation, follicular phase, ovulation and luteal phase. This cycle typically lasts 28 days. It affects mood, health and fertility. The experiences are very different. Some have few

Adaptive Cycle

Click here to see more videos: https://alugha.com/SystemsInnovation 1Take the full course: https://systemsinnovation.io/course/ Follow along with the eBook: https://systemsinnovation.io/books/ The adaptive cycle is a heuristic model developed by C.S. Holling for understanding macro processes of cha

Carbon-Fiber Car of the Future

In this video segment adapted from NOVA, hear physicist and energy expert Amory Lovins explain how to make more efficient cars by making them lighter and more aerodynamic. Explore how the use of carbon fiber can reduce weight without reducing size or durability, and learn about some manufacturing ch