Unexpected Elements The gift of science
Dec 26, 2025
Join Dr. Krishma Singhal, a postdoctoral physicist from Rice University, as she dives into the fascinating world of soft-matter physics and knitting. Discover how the unique topology of knit loops creates elasticity and programmable fabric behaviors. The discussion also explores the health benefits of donating blood and how polar bears contribute to Arctic ecosystems. Get ready for surprising insights about piranhas, the science of sneezing, and the chemistry behind salting roads—perfect for a holiday treat!
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Health Perks Of Regular Blood Donation
- Donate blood regularly because it can lower blood viscosity and reduce cardiovascular risk.
- Frequent donation may also trigger beneficial stem-cell changes that speed blood regeneration.
Donation May Drive Beneficial Genetic Change
- Researchers found frequent donors developed a mutation that boosts blood cell production.
- The mutation acts like positive stress, similar to exercise, improving long-term blood regeneration.
Polar Bears As Arctic Providers
- Polar bears act as ecosystem providers by leaving millions of kilograms of seal carcasses for scavengers.
- Their carcasses transfer marine nutrients to land and support at least 11 vertebrate species.