If you draw lightning bolts like this, you’re doing it all wrong. (Credit: Shutterstock)
How do you draw lightning bolts? If you draw them as zigzags, similar to the image above, and Harry Potter’s famous scar, then you’re wrong.
A 19th century photographer named William Nicholson Jennings had this wild theory that lightning isn’t depicted accurately in paintings. But how to prove it? Technology, of course! Jennings looked to photography to prove his theory cor ...read more
A household scene as viewed by various pets and pests. Human eyesight is roughly seven times sharper than a cat, 40 to 60 times sharper than a rat or a goldfish, and hundreds of times sharper than a fly or a mosquito. (Image courtesy of Eleanor Caves)
Animals have us beat in basically every test of sensory perception. Bats bounce ultrasonic waves to locate prey, and bears can smell a carcass from miles away.
But our abilities are respectable in one category: visual acuity. A study pub ...read more
Lava entering the Pacific Ocean where Kapoho Bay used to be. Seen on June 5, 2018. USGS/HVO.
It almost sounds like the plot to a monster movie, but over the last few days, the lava flows from the Leilani Estates fissure eruption have eaten an entire bay (see above). What was known as Kapoho Bay is no more as lava from Fissure 8 poured into the bay, covered tide pools and has now converted the whole area into a peninsula jutting out over a kilometer into the Pacific Ocean. In the process, t ...read more
Researchers have found evidence of pneumonia and a tuberculosis-like infection in a marine reptile, similar to the nothosaur shown here, that lived 245 million years ago. (Credit: Nobu Tamura/Wikimedia Commons)
One of the oldest diseases to haunt our species — the lung infection known as pneumonia — is actually a lot older. Evidence of pneumonia, and possible tuberculosis, has turned up in a marine reptile that’s 245 million years old.
Researchers analyzed a fragmentary s ...read more
Flour and eggs (Photo Credit: Steven Du)
Guest post by Steven Du
Paste, the Latin Late antiquity translation for the word Pasta. [3] Eating spaghetti and meatballs today typically involves boiling some dried spaghetti pasta and pouring on some pasta sauce from a jar. But have you ever wondered how to make these golden silky strands of noodles? To start off, we have to sail to China with Marco Polo and learn about the origins of Bing.
Bing is Chinese for wheat products and dumplings. [3] The rea ...read more
Pluto is a beautiful world, with ice mountains, nitrogen glaciers, a haze-layered atmosphere, and methane dunes. But all that complexity does not necessarily make it a “planet.” (Credit: NASA/JHUAPL/SwRI)
I love Pluto. I grew up entranced by this strange little world: What could you be, you rebel that doesn’t seem to follow any of the rules? I even wrote a childhood letter to a local astronomer, offering my homespun hypothesis that Pluto might be a captured fragment of an exp ...read more
Well, Einstein’s done it again!
That is to say, the gravitational theories of Albert Einstein have once again been confirmed, and to a new degree of precision. The equations of general relativity predicted a certain quantity would be zero, and physicists at the National Institute of Standards and Technology (NIST) have calculated a record-low, unbelievably tiny result — basically, as good to zero as we can get.
So what did they measure? The variation between different ultra-precise ...read more
We all know a bullshitter. They can shoot off explanations and rationales for just about anything — even if they don’t know what they’re talking about. They’re not liars, purposefully hiding the truth, but they certainly don’t care if what they’re saying is true or not. Scientists have studied the phenomenon before, digging into how we perceive bullshit and its consequences. But what makes us actually bullshit in the first place? That’s what psychologis ...read more
Curiosity’s self portrait on Mars. (Image courtesy of NASA/JPL-Caltech/MSSS)
After suffering more than a year with a broken drill, NASA’s 5-year-old Mars rover Curiosity is now collecting and analyzing samples once again.
The drill sits at the end of Curiosity’s LeBron James-sized robotic arm and is vital for grabbing and dropping dirt into the spacecraft’s onboard laboratory. Scientists at the Jet Propulsion Laboratory (JPL) put many months of effort into hacking ...read more
When NASA’s New Horizons spacecraft zipped by Pluto at 31,000 mph in July 2015, it captured a plethora of breathtaking photos of the distant dwarf planet’s surface. Within these highly detailed images, researchers noticed what looked to be an extensive system of strange dunes stretching 75 miles along the boundary of Pluto’s massive Al-Idrisi Montes mountain range and Sputnik Planitia — a nitrogen-ice plain that forms the left lobe of the planet’s fa ...read more