An elegant, 400-year-old means of navigating the stars takes flight.
- The Planetary Society is about to launch LightSail 2, a crowdfunded light sail craft.
- LightSail 2 uses photons from the sun as fuel.
- Space X's Falcom Heavy rocket will carry LightSail 2 aloft, 720 kilometers up.
Average waiting time for hitchhikers in Ireland: Less than 30 minutes. In southern Spain: More than 90 minutes.
- A popular means of transportation from the 1920s to the 1980s, hitchhiking has since fallen in disrepute.
- However, as this map shows, thumbing a ride still occupies a thriving niche – if at great geographic variance.
- In some countries and areas, you'll be off the street in no time. In other places, it's much harder to thumb your way from A to B.
The Hermeus Corporation recently received seed funding to begin building a hypersonic jet that would travel twice the speed of the now-retired Concorde.
- The Hermeus Corporation, an Atlanta-based startup, said it'd take about 10 years to build its hypersonic jet.
- The era of commercial supersonic transport came to an end in 2003 when the Concorde was retired.
- Recently, many companies and nations have started investing in supersonic research, possibly signaling the return of the technology in commercial flight.
Unfortunately, this means that drivers act more aggressively on the road when spotting cyclists.
- A new study in Australia shows that half of drivers don't rate cyclists as humans—this includes cyclists themselves.
- This research follows up on previous studies that show drivers act more aggressively toward cyclists after dehumanizing them.
- Cycling accidents in the US account for nearly 3 percent of all deaths on the roads.
Archeologists had been doubtful since no such ship had ever been found.
- In 450 BCE, Greek historian Herodotus described a barge that's never been found.
- When the ancient port of Thonis-Heracleion was discovered, some 70 sunken ships were found resting in its waters.
- One boat, Ship 17, uncannily matches the Herodotus' description.
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