CLOSE

Look Up Tonight! The Lyrids Meteor Shower Is Set to Stun!

Look up tonight and you’ll see a waning crescent Moon, and, every few minutes, shooting stars falling from the sky. The Lyrids meteor shower peaks on April 21, and if light pollution is low in your area, you can expect to see around 10 meteors per hour—maybe more if you escape to the countryside.

WHAT IS GOING ON UP THERE?

The Lyrids—named for the constellation Lyra from which they seem to originate—are the happy result of the Earth slamming into the debris of the comet C/1861 G1 Thatcher (named after its discoverer, not the former British prime minister). But don’t worry: Thatcher isn’t a danger! As it flies about its four-century-long orbit around the Sun, particles fall away. It’s perfectly normal shedding, resulting in an annual evening-time spectacular.

Thatcher is a long-period comet; such comets have orbits longer than 200 years. At aphelion—that is, its farthest point from the Sun—Thatcher is at a distance of 110 astronomical units (AU). To put this in perspective, the distance from the Sun to the Earth is 1 AU. The distance from the Sun to Pluto is about 40 AU. The very farthest-known natural, observable object in the solar system, V774104, is presently 103 AU. So Thatcher has put in a lot of work to make tonight's light show happen. I hope you appreciate it. This meteor shower is 415 years and 21,225,138,770 miles in the making. If that’s not good enough for you, nothing is.

HOW DO I SEE THE LYRIDS?

Sometimes, the Lyrids deliver a mind-blowing show. Its first reported occurrence was reportedly so bright and busy that it drowned out the stars. In 1982, it reached 90 meteors an hour. Ordinarily, however, the meteor shower produces five to 20 meteors every hour. Don’t miss this chance to see them, because when it comes to dust-sized cometary particles vaporizing in Earth’s atmosphere at 30,000 miles per hour, you just never know how good the show will be.

The best time to see the Lyrids will be after midnight until just before dawn. While you wait, check out Jupiter, bright and unblinking in the south. If you have a telescope handy, or even a reasonably powered set of binoculars, you’ll easily see four of its moons: Europa, Ganymede, Io, and Callisto. You can also see Saturn to the southeast (though this isn’t the best time for viewing it). As dawn approaches, look east and you’ll see Venus up there, as bright as ever. (It reaches greatest brilliancy on April 30.)

To enjoy the Lyrids meteor shower, you won’t need binoculars or a telescope or anything, really, but a blanket and patience. Since it’s a Friday night, bring a bottle of wine. You’re not going to live forever. Because the Moon will be but a sliver, it won’t wash out the sky with moonlight. So Thatcher and the Moon are doing the heavy lifting here. All you have to do is show up and wait.

Original image
iStock
arrow
Live Smarter
Trying to Save Money? Avoid Shopping on a Smartphone
Original image
iStock

Today, Americans do most of their shopping online—but as anyone who’s indulged in late-night retail therapy likely knows, this convenience often can come with an added cost. Trying to curb expenses, but don't want to swear off the convenience of ordering groceries in your PJs? New research shows that shopping on a desktop computer instead of a mobile phone may help you avoid making foolish purchases, according to Co. Design.

Ying Zhu, a marketing professor at the University of British Columbia-Okanagan, recently led a study to measure how touchscreen technology affects consumer behavior. Published in the Journal of Retailing and Consumer Services, her research found that people are more likely to make more frivolous, impulsive purchases if they’re shopping on their phones than if they’re facing a computer monitor.

Zhu, along with study co-author Jeffrey Meyer of Bowling Green State University, ran a series of lab experiments on student participants to observe how different electronic devices affected shoppers’ thinking styles and intentions. Their aim was to see if subjects' purchasing goals changed when it came to buying frivolous things, like chocolate or massages, or more practical things, like food or office supplies.

In one experiment, participants were randomly assigned to use a desktop or a touchscreen. Then, they were presented with an offer to purchase either a frivolous item (a $50 restaurant certificate for $30) or a useful one (a $50 grocery certificate for $30). These subjects used a three-point scale to gauge how likely they were to purchase the offer, and they also evaluated how practical or frivolous each item was. (Participants rated the restaurant certificate to be more indulgent than the grocery certificate.)

Sure enough, the researchers found that participants had "significantly higher" purchase intentions for hedonic (i.e. pleasurable) products when buying on touchscreens than on desktops, according to the study. On the flip side, participants had significantly higher purchase intentions for utilitarian (i.e. practical) products while using desktops instead of touchscreens.

"The playful and fun nature of the touchscreen enhances consumers' favor of hedonic products; while the logical and functional nature of a desktop endorses the consumers' preference for utilitarian products," Zhu explains in a press release.

The study also found that participants using touchscreen technology scored significantly higher on "experiential thinking" than subjects using desktop computers, whereas those with desktop computers demonstrated higher scores for rational thinking.

“When you’re in an experiential thinking mode, [you crave] excitement, a different experience,” Zhu explained to Co. Design. “When you’re on the desktop, with all the work emails, that interface puts you into a rational thinking style. While you’re in a rational thinking style, when you assess a product, you’ll look for something with functionality and specific uses.”

Zhu’s advice for consumers looking to conserve cash? Stow away the smartphone when you’re itching to splurge on a guilty pleasure.

[h/t Fast Company]

arrow
Animals
Elusive Butterfly Sighted in Scotland for the First Time in 133 Years

Conditions weren’t looking too promising for the white-letter hairstreak, an elusive butterfly that’s native to the UK. Threatened by habitat loss, the butterfly's numbers have dwindled by 96 percent since the 1970s, and the insect hasn’t even been spotted in Scotland since 1884. So you can imagine the surprise lepidopterists felt when a white-letter hairstreak was seen feeding in a field in Berwickshire, Scotland earlier in August, according to The Guardian.

A man named Iain Cowe noticed the butterfly and managed to capture it on camera. “It is not every day that something as special as this is found when out and about on a regular butterfly foray,” Cowe said in a statement provided by the UK's Butterfly Conservation. “It was a very ragged and worn individual found feeding on ragwort in the grassy edge of an arable field.”

The white-letter hairstreak is a small brown butterfly with a white “W”-shaped streak on the underside of its wings and a small orange spot on its hindwings. It’s not easily sighted, as it tends to spend most of its life feeding and breeding in treetops.

The butterfly’s preferred habitat is the elm tree, but an outbreak of Dutch elm disease—first noted the 1970s—forced the white-letter hairstreak to find new homes and food sources as millions of Britain's elm trees died. The threatened species has slowly spread north, and experts are now hopeful that Scotland could be a good home for the insect. (Dutch elm disease does exist in Scotland, but the nation also has a good amount of disease-resistant Wych elms.)

If a breeding colony is confirmed, the white-letter hairstreak will bump Scotland’s number of butterfly species that live and breed in the country up to 34. “We don’t have many butterfly species in Scotland so one more is very nice to have,” Paul Kirkland, director of Butterfly Conservation Scotland, said in a statement.

Prior to 1884, the only confirmed sighting of a white-letter hairstreak in Scotland was in 1859. However, the insect’s newfound presence in Scotland comes at a cost: The UK’s butterflies are moving north due to climate change, and the white-letter hairstreak’s arrival is “almost certainly due to the warming climate,” Kirkland said.

[h/t The Guardian]

SECTIONS

arrow
LIVE SMARTER
More from mental floss studios