ScienceDaily: Strange Science News |
- Nanotech scientists create world's smallest origami bird
- Missing baryons found in far-out reaches of galactic halos
- How hummingbirds hum
| Nanotech scientists create world's smallest origami bird Posted: 17 Mar 2021 03:16 PM PDT Researchers have created micron-sized shape memory actuators that enable atomically thin two-dimensional materials to fold themselves into 3D configurations. All they require is a quick jolt of voltage. And once the material is bent, it holds its shape - even after the voltage is removed. |
| Missing baryons found in far-out reaches of galactic halos Posted: 17 Mar 2021 11:16 AM PDT Researchers have channeled the universe's earliest light - a relic of the universe's formation known as the cosmic microwave background - to solve a missing-matter mystery and learn new things about galaxy formation. Their work could also help us to better understand dark energy and test Einstein's theory of general relativity by providing new details about the rate at which galaxies are moving toward us or away from us. |
| Posted: 16 Mar 2021 05:37 AM PDT Researchers observed hummingbirds using 12 high-speed cameras, 6 pressure plates and 2176 microphones. The soft and complex feathered wings generate sound in a fashion similar to how the simpler wings of insect do. These new insights could help make fans and drones quieter. |
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