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Hulton Archive/Getty Images
Hulton Archive/Getty Images

What is the Riot Act, and Why Don't I Want It Read to Me?

Hulton Archive/Getty Images
Hulton Archive/Getty Images

In 2011, NBC published a guide on how employees could "read the riot act" to their subordinates. Professional footballer Stéphane Mahé was once "read the riot act" after fouling a rival player so hard he needed four stitches. In Bibb County, Georgia, a Superior Court Judge "read the riot act" to a group of wayward teens in an effort to curb their bad behavior.

The idiom, which has been in use for centuries, is generally thought to mean the admonishment of a person or persons who have committed an error in judgment. But the origin of the term "riot act" concerns a very particular wrongdoing—an unlawful public assembly that peace officers of the 16th century fought with a pre-written warning to disperse or face serious repercussions. Like death.

Atlas Obscura reports that the riot act was first passed by British Parliament in 1714 and took effect on August 1, 1715. At its core, the Act served as what linguists refer to as a speech act: a word, phrase, or order that carries real weight. (Think of an ordained minister pronouncing a couple husband and wife.) If confronted with a rowdy crowd, an authoritarian would arrive and—this was crucial—read the Act aloud in order to serve formal notice that the parties involved were overstepping their bounds.

A copy of language appearing in the Riot Act
Jenson, Wikimedia Commons // Public Domain

The Act was passed in haste because supporters of the Catholic Jacobite political movement had been voicing their disapproval of King George I. A "riot" was any group of 12 or more people that was engaged in public disharmony. Typically, the raucous formation would be given 60 minutes to take a hike. If not, their just punishment would be prison, labor, or death. If the peace officer believed danger was imminent, he wouldn't have to wait the whole hour: He could deputize citizens to try and break up the gathering.

To enforce the Act and any punishments, the officer had to punctuate the reading by shouting, "God save the King!"

Scholars have wondered how successful such orators were in scolding a large assembly of angry protestors. In 1768, the answer was: not very. People opposing the imprisonment of radical John Wilkes ignored the Riot Act and suffered shots of musket ball, which killed seven.

The Riot Act was officially repealed in England and Wales in 1967 as part of some legislative housekeeping. Today, it's almost always used as a figure of speech, although Belize still recognizes it as a meaningful method of crowd dispersal. In 2017, police officers drew criticism for launching tear gas into a People's United Party protest without first reading them the Riot Act.

Questioned by a reporter, assistant commissioner of police Edward Broaster said that the incident didn't "meet the threshold" for busting out the paperwork.

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Big Questions
How Are Speed Limits Set?
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When driving down a road where speed limits are oppressively low, or high enough to let drivers get away with reckless behavior, it's easy to blame the government for getting it wrong. But you and your fellow drivers play a bigger a role in determining speed limits than you might think.

Before cities can come up with speed limit figures, they first need to look at how fast motorists drive down certain roads when there are no limitations. According to The Sacramento Bee, officials conduct speed surveys on two types of roads: arterial roads (typically four-lane highways) and collector streets (two-lane roads connecting residential areas to arterials). Once the data has been collected, they toss out the fastest 15 percent of drivers. The thinking is that this group is probably going faster than what's safe and isn't representative of the average driver. The sweet spot, according to the state, is the 85th percentile: Drivers in this group are thought to occupy the Goldilocks zone of safety and efficiency.

Officials use whatever speed falls in the 85th percentile to set limits for that street, but they do have some wiggle room. If the average speed is 33 mph, for example, they’d normally round up to 35 or down to 30 to reach the nearest 5-mph increment. Whether they decide to make the number higher or lower depends on other information they know about that area. If there’s a risky turn, they might decide to round down and keep drivers on the slow side.

A road’s crash rate also comes into play: If the number of collisions per million miles traveled for that stretch of road is higher than average, officials might lower the speed limit regardless of the 85th percentile rule. Roads that have a history of accidents might also warrant a special signal or sign to reinforce the new speed limit.

For other types of roads, setting speed limits is more of a cut-and-dry process. Streets that run through school zones, business districts, and residential areas are all assigned standard speed limits that are much lower than what drivers might hit if given free rein.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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Do Bacteria Have Bacteria?
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Drew Smith:

Do bacteria have bacteria? Yes.

We know that bacteria range in size from 0.2 micrometers to nearly one millimeter. That’s more than a thousand-fold difference, easily enough to accommodate a small bacterium inside a larger one.

Nothing forbids bacteria from invading other bacteria, and in biology, that which is not forbidden is inevitable.

We have at least one example: Like many mealybugs, Planococcus citri has a bacterial endosymbiont, in this case the β-proteobacterium Tremblaya princeps. And this endosymbiont in turn has the γ-proteobacterium Moranella endobia living inside it. See for yourself:

Fluorescent In-Situ Hybridization confirming that intrabacterial symbionts reside inside Tremblaya cells in (A) M. hirsutus and (B) P. marginatus mealybugs. Tremblaya cells are in green, and γ-proteobacterial symbionts are in red. (Scale bar: 10 μm.)
Fluorescent In-Situ Hybridization confirming that intrabacterial symbionts reside inside Tremblaya cells in (A) M. hirsutus and (B) P. marginatus mealybugs. Tremblaya cells are in green, and γ-proteobacterial symbionts are in red. (Scale bar: 10 μm.)

I don’t know of examples of free-living bacteria hosting other bacteria within them, but that reflects either my ignorance or the likelihood that we haven’t looked hard enough for them. I’m sure they are out there.

Most (not all) scientists studying the origin of eukaryotic cells believe that they are descended from Archaea.

All scientists accept that the mitochondria which live inside eukaryotic cells are descendants of invasive alpha-proteobacteria. What’s not clear is whether archeal cells became eukaryotic in nature—that is, acquired internal membranes and transport systems—before or after acquiring mitochondria. The two scenarios can be sketched out like this:


The two hypotheses on the origin of eukaryotes:

(A) Archaezoan hypothesis.

(B) Symbiotic hypothesis.

The shapes within the eukaryotic cell denote the nucleus, the endomembrane system, and the cytoskeleton. The irregular gray shape denotes a putative wall-less archaeon that could have been the host of the alpha-proteobacterial endosymbiont, whereas the oblong red shape denotes a typical archaeon with a cell wall. A: archaea; B: bacteria; E: eukaryote; LUCA: last universal common ancestor of cellular life forms; LECA: last eukaryotic common ancestor; E-arch: putative archaezoan (primitive amitochondrial eukaryote); E-mit: primitive mitochondrial eukaryote; alpha:alpha-proteobacterium, ancestor of the mitochondrion.

The Archaezoan hypothesis has been given a bit of a boost by the discovery of Lokiarcheota. This complex Archaean has genes for phagocytosis, intracellular membrane formation and intracellular transport and signaling—hallmark activities of eukaryotic cells. The Lokiarcheotan genes are clearly related to eukaryotic genes, indicating a common origin.

Bacteria-within-bacteria is not only not a crazy idea, it probably accounts for the origin of Eucarya, and thus our own species.

We don’t know how common this arrangement is—we mostly study bacteria these days by sequencing their DNA. This is great for detecting uncultivatable species (which are 99 percent of them), but doesn’t tell us whether they are free-living or are some kind of symbiont. For that, someone would have to spend a lot of time prepping environmental samples for close examination by microscopic methods, a tedious project indeed. But one well worth doing, as it may shed more light on the history of life—which is often a history of conflict turned to cooperation. That’s a story which never gets old or stale.

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

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