ScienceDaily: Strange Science News |
- Even small disturbances can trigger catastrophic storms
- How a mint became catnip
- Expandable foam for 3D printing large objects
| Even small disturbances can trigger catastrophic storms Posted: 14 May 2020 08:58 AM PDT Researchers used numerical models that started with simple conditions to better understand exactly how hurricanes arise. |
| Posted: 13 May 2020 11:37 AM PDT Catmint -- or catnip -- is well-known for its intoxicating effect on cats. The odor responsible for the cats' strange behavior is nepetalactone, a volatile iridoid. Researchers have now found that the ability to produce iridoids had already been lost in ancestors of catmint. Hence, nepetalactone biosynthesis is the result of 'repeated evolution.' However, nepetalactone differs considerably from other iridoids with regards to its chemical structure and properties, and most likely its ecological functions. |
| Expandable foam for 3D printing large objects Posted: 13 May 2020 10:55 AM PDT It's a frustrating limitation of 3D printing: Printed objects must be smaller than the machine making them. Huge machines are impractical for printing large parts because they take up too much space and require excessive time to print. Now, a new material can be used to 3D print small objects that expand upon heating. The foam could find applications in architecture, aerospace and biomedicine. |
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