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Why Are Bottles of Champagne Smashed On New Ships?

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Before a ship slides from its berth into the water, it must first get hit on—by a bottle of booze, usually champagne. Here’s the lowdown on the history and physics of smashing some bubbly and launching a ship.

Launch Party

The tradition of christening a new ship for good luck and safe travel goes way back. Many ancient seafaring societies had their own ceremonies for launching a new ship. The Greeks wore olive branch wreaths around their heads, drank wine to honor the gods, and poured water on the new boat to bless it. The Babylonians sacrificed an ox, the Turks sacrificed a sheep, and the Vikings and Tahitians offered up human blood.

These events almost always had a religious tone to them, and the name of a favored god or god of the seas was often invoked. In the Middle Ages, two friars would often board British ships before their maiden voyage to pray, lay their hands on the masts and sprinkle holy water on the deck and bow.

The religious aspect of ship christening died off in Protestant Europe after the Reformation, especially in Great Britain. Some member of the royalty or nobility would instead join the crew for a secular ceremony of drinking from the “standing cup”—a large goblet, usually made of precious metal and fitted with a foot and a cover—and solemnly calling the ship by her name. After taking a drink, the presiding official would pour what liquid was left onto the deck or over the bow and then toss the cup over the side of the vessel, to be caught by a lucky bystander (or sink into the ocean). As Britain became a maritime power and its growing navy required more ships, the practice of discarding the expensive cups fell out of favor. For a while, they were caught in a net for reuse, but eventually, the whole ceremony was replaced by the breaking of a wine bottle across the ship’s bow.

Beverage Choices

Ship christening in the young United States borrowed from contemporary English tradition. The launch of the USS Constitution in 1797 included the captain breaking a bottle of Madeira wine on its bow. Over the next century, the ritual of breaking or pouring of some “christening fluid” remained, but the fluid itself varied wildly. The USS Princeton, Raritan and Shamrock were all christened with whiskey. The USS New Ironsides was double-christened, first with a bottle of brandy and then with Madeira. Other ships were teetotalers, and launched with water or grape juice. The USS Hartford was christened three times, with water from the Atlantic Ocean, the Connecticut River and Hartford Spring. The USS Kentucky was launched with spring water by her official sponsor, but as the battleship slipped into the water, onlookers gave her a baptism more fitting of her namesake state and bashed small bottles of bourbon against her sides.

It’s not clear how champagne came to be the favored fluid. The Secretary of the Navy’s granddaughter christened the USS Maine, the Navy's first steel battleship, with champagne in 1890. The shift to that particular sparkling wine might have been meant to coincide with the new era of steel, or it may just have just come into vogue because of association with power and elegance.

When Prohibition went into effect in the U.S., ships went sober again and were launched with water, juice or, in at least one case, apple cider. Champagne came back with the passage of the 21st Amendment and has stuck around since.

Heavy Hitter

Champagne bottles are basically booze-filled tanks. They have to stand up to the enormous pressure the wine creates inside them,  so their glass is very thick, and breaking them is no easy task. But, as Mark Miodownik, a material scientist at King's College London, told the BBC, it only takes a small defect, a slight imperfection in the glass, to compromise a bottle’s strength. He points out that bigger bottles have a higher probability of a natural defect, but any size bottle can be prodded along towards breaking if the wine has bigger bubbles, and hence more internal pressure. If ever you find yourself stuck christening a ship with a bottle that can take a beating, P&O (the British shipping and logistics company) chairman Sir John Parker, quoted in the same piece, suggests scoring the bottle with a glass cutter to to weaken it.

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Why Are Mugshots Made Public Before a Suspect is Convicted by the Court?
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Jennifer Ellis:

Several reasons.

1. Mugshots can help find people when they have absconded, or warn people when someone is out and dangerous. So there is a good reason to share some mugshots.

2. Our legal system requires openness as per the federal constitution, and I imagine most if not all state constitutions. As such, this sort of information is not considered private and can be shared. Any effort to keep mugshots private would result in lawsuits by the press and lay people. This would be under the First and Sixth Amendments as well as the various Freedom of Information Acts. However, in 2016 a federal court ruled [PDF] that federal mugshots are no longer routinely available under the federal FOIA.

This is partially in recognition of the damage that mugshots can do online. In its opinion, the court noted that “[a] disclosed booking photo casts a long, damaging shadow over the depicted individual.” The court specifically mentions websites that put mugshots online, in its analysis. “In fact, mugshot websites collect and display booking photos from decades-old arrests: BustedMugshots and JustMugshots, to name a couple.” Some states have passed or are looking to pass laws to prevent release of mugshots prior to conviction. New Jersey is one example.

a) As the federal court recognizes, and as we all know, the reality is that if your picture in a mugshot is out there, regardless of whether you were convicted, it can have an unfortunate impact on your life. In the old days, this wasn’t too much of a problem because it really wasn’t easy to find mugshots. Now, with companies allegedly seeking to extort people into paying to get their images off the web, it has become a serious problem. Those companies may get in trouble if it can be proved that they are working in concert, getting paid to take the picture off one site and then putting it on another. But that is rare. In most cases, the picture is just public data to which there is no right of privacy under the law.

b) The underlying purpose of publicity is to avoid the government charging people and abusing the authority to do so. It was believed that the publicity would help protect people. And it does when you have a country that likes to hide what it is up to. But, it also can cause harm in a modern society like ours, where such things end up on the web and can cause permanent damage. Unfortunately, it is a bit of a catch-22. We have the right to know issues and free speech rights smack up against privacy rights and serious damage of reputation for people who have not been convicted of a crime. The law will no doubt continue to shake out over the next few years as it struggles to catch up with the technology.

This post originally appeared on Quora. Click here to view.

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What Happens When You Flush an Airplane Toilet?
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For millions of people, summer means an opportunity to hop on a plane and experience new and exciting sights, cultures, and food. It also means getting packed into a giant commercial aircraft and then wondering if you can make it to your next layover without submitting to the anxiety of using the onboard bathroom.

Roughly the size of an apartment pantry, these narrow facilities barely accommodate your outstretched knees; turbulence can make expelling waste a harrowing nightmare. Once you’ve successfully managed to complete the task and flush, what happens next?

Unlike our home toilets, planes can’t rely on water tanks to create passive suction to draw waste from the bowl. In addition to the expense of hauling hundreds of gallons of water, it’s impractical to leave standing water in an environment that shakes its contents like a snow globe. Originally, planes used an electronic pump system that moved waste along with a deodorizing liquid called Anotec. That method worked, but carrying the Anotec was undesirable for the same reasons as storing water: It raised fuel costs and added weight to the aircraft that could have been allocated for passengers. (Not surprisingly, airlines prefer to transport paying customers over blobs of poop.)

Beginning in the 1980s, planes used a pneumatic vacuum to suck liquids and solids down and away from the fixture. Once you hit the flush button, a valve at the bottom of the toilet opens, allowing the vacuum to siphon the contents out. (A nonstick coating similar to Teflon reduces the odds of any residue.) It travels to a storage tank near the back of the plane at high speeds, ready for ground crews to drain it once the airplane lands. The tank is then flushed out using a disinfectant.

If you’re also curious about timing your bathroom visit to avoid people waiting in line while you void, flight attendants say the best time to go is right after the captain turns off the seat belt sign and before drink service begins.

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