Good luck, bad luck

Have you ever broken a mirror? Let's demystify these 10 superstitions

Do you have rules you follow "just in case"? Some of us avoid walking under ladders, hesitate before opening umbrellas indoors, or instinctively knock on wood after saying something… But

where did these rituals come from? Why did some everyday accidents, animals, or gestures get labeled "unlucky"? Let’s explore some of the answers and whether they have to do with psychology, religion, history, or plain old common sense!

For one, there’s the safety concern: Why would you walk under a ladder if you could avoid the –albeit low– risk of it falling on you?

However, this superstition is also linked to the medieval Christian belief that interrupting a shape resembling a triangle was a way of insulting the Holy Trinity. Again: Why risk it?

Have you ever shattered a mirror and winced at the thought of years of bad luck? This goes back to ancient Greece and Rome. There, reflections were thought to be linked to the soul. Destroying a mirror was considered an affront to the gods watching over your spiritual self.

The "seven years" bit comes from the Roman idea that the human body renewed itself in seven-year cycles.

"You’ll jinx it!" is a common reaction when someone celebrates before their actual birthday. This superstition appears across several European traditions, where marking a milestone before it arrives was seen as presumptuous, even disrespectful to fate.

In eras when illness and mortality were real daily concerns, reaching your birthday wasn’t guaranteed… so celebrating early felt like counting blessings before earning them.

In ancient Egypt, black cats were revered and associated with protection and prosperity. What happened to their reputation, then? Simply put, in medieval Europe, when fear of witchcraft ran rampant, cats (especially the poor black ones) became linked with witches.

However, beliefs vary widely: in Britain, Ireland, and Japan, black cats can signify good luck or fortune, and sailors once welcomed them aboard ships to ensure safe voyages.

In many Western traditions, both Fridays and the number 13 had separate unlucky connotations long before they were combined: Friday was sometimes seen as ill-fated in Christian lore (Jesus’ crucifixion is said to have been on a Friday), and 13 was viewed with suspicion in Norse myth (where Loki’s unexpected arrival as the 13th guest at a feast led to chaos).

When early umbrellas with stiff metal frames first became popular in Britain and Europe, they were hard to fold and easy to jab into furniture, lamps, or unsuspecting family members. That made opening one inside genuinely hazardous, and turning it into a superstition was a tidy way to say, "Please don’t do it."

Almost everyone does this reflexively: you say something hopeful and then tap wood to "keep the luck going." One theory ties this to pagan traditions in Europe, where people believed protective spirits lived in trees; knocking on the trunk was a way to call on those spirits or to secure their goodwill.

Salt was once very precious: it preserved food, flavored meals, and even served as currency in parts of the ancient world. Spilling it meant waste, and waste invited misfortune. But, of course, everyone knows the fix: throw some over your left shoulder.

"Step on a crack, break your mother’s back." This ominous-sounding rhyme isn’t ancient at all; it rose to popularity in the early 20th century, spread through schoolyards rather than folklore. Of course, there is no logical explanation to back it up. But if you are superstitious… why would you risk it?

"One for sorrow, two for joy"... In British and Irish folklore, seeing a single magpie was thought to signal misfortune, loneliness, or bad news. The belief probably just pointed at how unlikely it is to see only one of these beautiful birds. To counter the bad luck, people developed rituals: tipping a hat, greeting the bird politely, or even saluting it.

Mayday! Mayday!

Airport lingo 101: Learn the meaning of 10 commercial aviation codes

Image: Erik Odiin

Airport codes, numbers, and technical lingo might seem arcane or even random at first glance, but most have surprisingly logical origins. From international abbreviations to behind-the-scenes terms used by airport staff, there’s a whole coded world buzzing around your flight. Let’s unpack 10 of the most widely used ones.

Image: Nicole Geri

IATA airport codes are those three-letter codes you see on tickets and baggage tags, like LAX for Los Angeles or JFK for New York. They're set by the International Air Transport Association (the aforementioned IATA).

These codes often reflect the airport’s name or location, but not always. Some are not as obvious, like ORD for Chicago O’Hare, which comes from its previous name: Orchard Field.

Image: CHUTTERSNAP

A relative of the IATA airport codes, UN/LOCODEs are five-character codes used in global trade and transport. They combine a two-letter country code with a three-letter location code, like USLAX for Los Angeles in the U.S.

These codes help standardize locations in shipping, logistics, and customs. You might not see them as often as airport codes, but they’re essential behind the scenes in moving goods worldwide.

Image: George Kourounis

Airport terminal and gate codes help guide you through the airport. A sign like T1-G12 means Terminal 1, Gate 12.

Each airport has its own layout, so the letters and numbers can vary. Some use concourses (like B42), while others just number gates.

Image: Eduardo Cano Photo Co.

Runway designators are those numbers you see at each end of an airport runway, like 09/27. They’re based on compass directions. For example, 09 means 90°, or east, and 27 means 270°, or west.

If there are parallel runways, you’ll see letters too, like L for left or R for right (e.g., 09L/27R).

Image: Matthew Smith

Airline and flight number codes help identify specific flights, like AA100 for American Airlines Flight 100. The first part is the airline’s IATA code, followed by a number assigned to the route.

These codes are used in schedules, boarding passes, and announcements.

Image: Nicholas Jeffries

A-CDM codes are used at airports to help controllers and pilots work together smoothly using universal directives. They stand for Airport Collaborative Decision Making.

Some examples of these kinds of codes are TOBT (Target Off-Block Time) and TSAT (Target Start-up Approval Time), which help coordinate when planes should push back or start engines.

Image: Gurwinder Singh

METAR and TAF codes use ICAO airport codes to report weather conditions for pilots and flight crews. For example, EGLL is used in METAR reports for London Heathrow.

These reports include info like wind, visibility, and temperature. METARs show current weather, while TAFs give forecasts.

Image: Dimitri Karastelev

Baggage tag numbers and codes are the barcodes that are attached to the luggage when it is checked. They usually include the airport's IATA code, like LAX123456, to help route the bag correctly.

These tags let airports and airlines track bags from drop-off to arrival.

Image: David

Flight status codes are seen on airport screens, like ON TIME, DELAYED, or BOARDING, to keep passengers updated. They’re simple but super helpful when you’re rushing to your gate.

Other codes can be spotted, like DEP (Departed), ARR (Arrived), ETA (Estimated Time of Arrival), and GATE CLOSED.

Image: CardMapr.nl

Flight numbers help identify each flight and usually include four or five digits after the airline code. These numbers aren’t random: they often reveal details like the route, destination, or flight type.

For example, Lufthansa uses 400s for North America and 900s for Asia. Some airlines even assign numbers based on the country of origin.