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ScienceDaily: Strange Science News |
| Stone Age raves to the beat of elk tooth rattles? Posted: 03 Jun 2021 02:13 PM PDT In the Stone Age, some 8,000 years ago, people danced often and in a psychedelic way. This is a conclusion drawn from elk teeth discovered in the Yuzhniy Oleniy Ostrov burial site in the Republic of Karelia, Russia, whose wear marks and location in the graves indicate that the objects were used as rattlers. |
| Underwater ancient cypress forest offers clues to the past Posted: 03 Jun 2021 02:12 PM PDT Marine geologists and paleoclimatologists new research findings uncover new information about the underwater ancient cypress forest and the Gulf Coast's past. |
| North Atlantic right whales have gotten smaller since the 1980s Posted: 03 Jun 2021 02:11 PM PDT Whales are largely protected from direct catch, but many populations' numbers still remain far below what they once were. A study suggests that, in addition to smaller population sizes, those whales that survive are struggling. As evidence, they find that right whales living in the North Atlantic today are significantly shorter than those born 30 to 40 years ago. |
| Front-row view reveals exceptional cosmic explosion Posted: 03 Jun 2021 02:11 PM PDT Scientists have gained the best view yet of the brightest explosions in the universe: A specialised observatory in Namibia has recorded the most energetic radiation and longest gamma-ray afterglow of a so-called gamma-ray burst to date. The observations with the High Energy Stereoscopic System (H.E.S.S.) challenge the idea of how gamma-rays are produced in these colossal stellar explosions which are the birth cries of black holes, as the international team reports. |
| A shark mystery millions of years in the making Posted: 03 Jun 2021 02:11 PM PDT The biggest shark attack in history did not involve humans. A new study by earth scientists has turned up a massive die-off of sharks roughly 19 million years ago. It came at a period in history when there were more than 10 times more sharks patrolling the world's oceans than there are today. |
| Water droplets become hydrobots by adding magnetic beads Posted: 03 Jun 2021 08:19 AM PDT Using a piece of magnet, researchers have designed a simple system that can control the movement of a small puddle of water, even when it's upside down. The new liquid manipulation strategy can have a wide range of applications including cleaning hard-to-reach environments or delivering small objects. |
| Jets from massive protostars might be very different from lower-mass systems Posted: 03 Jun 2021 08:19 AM PDT A highly-detailed VLA image indicates that the jets of material propelled outward by young stars much more massive than the Sun may be very different from those ejected by less-massive young stars. |
| Is Earth's core lopsided? Strange goings-on in our planet's interior Posted: 03 Jun 2021 08:19 AM PDT Seismic waves generated by earthquakes travel through Earth's solid iron inner core faster in the direction of the rotation axis than along the equator. Scientists created a core growth model to explain this. To fit seismic data, the model predicts that asymmetric growth of the core leads to crystal movement that preferentially aligns iron-nickel crystals north-south. The model implies that the core is only 0.5-1.5 billion years old, a fraction of Earth's age. |
| How leafbirds make complex color-producing crystals Posted: 03 Jun 2021 08:19 AM PDT A recent study has discovered a novel way to manufacture single gyroid photonic crystals to work in the visible light spectrum, based on the self-assembly mechanism found in blue-winged leafbirds. |
| Top acoustic amplifier emerges from 50-year-old hypothesis Posted: 02 Jun 2021 06:11 AM PDT Scientists have built the smallest and best acoustic amplifier. And they did it using a concept that was all but abandoned for almost 50 years. |
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