Watch a Baby Go from Babbling to Baby Talk to Words in ASL

One of the most exciting discoveries of sign language research is that children acquiring sign languages go through the same linguistic stages that those acquiring spoken languages do. First they babble, experimenting with the basic units of the language (sounds in the case of spoken language and handshapes, movements, and locations in the case of sign). Then they begin to structure the babbling into words, making cute mistakes along the way, before ultimately gaining control over word production.

This video from Handspeak shows how nine specific signs (plus some fingerspelled words) are acquired by one child from 6 months to 3 years old. For the first sign “work,” for example, she moves from the general hand movement, to the proper handshape, to the proper handshape and relationship between the two hands. It’s a fascinating look at the natural blossoming of language over time.

7 Massage Guns That Are on Sale Right Now

Jawku/Actigun
Jawku/Actigun

Outdoor exercise is a big focus leading into summer, but as you begin to really tone and strengthen your muscles, you might notice some tough knots and soreness that you just can’t kick. Enter the post-workout massage gun—these bad boys are like having a deep-tissue masseuse by your side whenever you want. If you're looking to pick one up for yourself, check out these brands while they’re on sale.

1. Actigun 2.0: Percussion Massager (Black); $128 (57 percent off)

Actigun massage gun.
Actigun

Don't assume you need a professional masseur to provide relief—this massage gun offers 20 variable speeds and can adjust the output power on its own according to pressure. Can your human massage therapist do that?

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2. JAWKU Muscle Blaster V2 Cordless Percussion Massage Gun; $260 (13 percent off)

Jawku massaging gun.
Jawku

This cordless, five-speed massager uses a design that's aimed to increase blood flow, release stored lactic acid, and relieve sore muscles through various vibrations.

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3. DEEP4s: Percussive Therapy Massage Gun for Athletes; $230 (23 percent off)

Re-Athlete massage gun.
Re-Athlete

Instant relief is an option with this massage tool, featuring five different attachments made to tackle any muscle group. You can squeeze in eight hours of massage time before you have to charge it again.

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4. Handheld Massage Gun for Deep Tissue Percussion; $75 (15 percent off)

Massage gun from Stackcommerce.
Stackcommerce

With five replaceable heads and six speed settings, this massage gun can easily adapt to the location and intensity of your soreness. And since it lasts up to three hours per charge, you won't have to worry about constantly plugging it in.

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5. The Backmate Power Massager; $120 (19 percent off)

Backmate massage gun.
Backmate

Speed is the name of the game here. The Backmate Power Massager is designed for fast, effective relief through its ergonomic design. Fast doesn’t need to mean short, either. After the instant relief, you can stimulate and distract your nervous system for lasting pain relief.

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6. ZTECH Percussion Massage Gun (Red); $80 (46 percent off)

ZTech massage gun.
ZTech

This massage gun looks a lot like a power drill, and, similarly, you can adjust its design for the perfect fit with six interchangeable heads that target different muscle areas.

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7. Aduro Sport Elite Recovery Massage Gun (Maroon); $80 (60 percent off)

Aduro massage gun.
Aduro

Tackle large muscle groups, the neck, Achilles tendon, joints, and small muscle areas with this single massage gun. Four massage heads and six intensity levels allow this tool to provide a highly customizable experience.

Buy it: Mental Floss Shop

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links. If you haven't received your voucher or have a question about your order, contact the Mental Floss shop here.


The Racist Origins of 7 Common Phrases

Rasmus Gundorff Sæderup, Unsplash
Rasmus Gundorff Sæderup, Unsplash

Even the most nonsensical idioms in the English language originated somewhere. Some terms, like silver lining and tomfoolery, have innocuous roots, while other sayings date back to the darkest chapters in U.S. history. While these common phrases are rarely used in their original contexts today, knowing their racist origins casts them in a different light.

1. Tipping Point

This common phrase describes the critical point when a change that had been a possibility becomes inevitable. When it was popularized, according to Merriam-Webster, it was applied to one phenomenon in particular: white flight. In the 1950s, as white people abandoned urban areas for the suburbs in huge numbers, journalists began using the phrase tipping point in relation to the percentage of minority neighbors it took to trigger this reaction in white city residents. Tipping point wasn’t coined in the 1950s (it first appeared in print in the 19th century), but it did enter everyday speech during the decade thanks to this topic.

2. Long Time, No See

The saying long time, no see can be traced back to the 19th century. In a Boston Sunday Globe article from 1894, the words are applied to a Native American speaker. The broken English phrase was also used to evoke white people's stereotypical ideas of Native American speech in William F. Drannan’s 1899 book Thirty-One Years on the Plains and in the Mountains, Or, the Last Voice from the Plains An Authentic Record of a Life Time of Hunting, Trapping, Scouting and Indian Fighting in the Far West.

It's unlikely actual Native Americans were saying long time, no see during this era. According to the Oxford English Dictionary, this type of isolating construction would have been unusual for the indigenous languages of North America. Rather, it originated as a way for white writers to mock Native American speech, and that of non-native English speakers from other places like China. By the 1920s, it had become an ordinary part of the American vernacular.

3. Mumbo Jumbo

Before it was synonymous with jargon or other confusing language, the phrase mumbo jumbo originated with religious ceremonies in West Africa. In the Mandinka language, the word Maamajomboo described a masked dancer who participated in ceremonies. Former Royal African Company clerk Francis Moore transcribed the name as mumbo jumbo in his 1738 book Travels into the Inland Parts of Africa. In the early 1800s, English speakers started to divorce the phrase from its African origins and apply it to anything that confused them.

4. Sold Down the River

Before the phrase sold down the river meant betrayal, it originated as a literal slave-trading practice. Enslaved people from more northerly regions were sold to cotton plantations in the Deep South via the Mississippi and Ohio rivers. For enslaved people, the threat of being “sold down the river” implied separation from family and a life of hard labor. A journal entry from April 1835 mentions a person who, “having been sold to go down the river, attempted first to cut off both of his legs, failing to do that, cut his throat, did not entirely take his life, went a short distance and drowned himself.”

5. No Can Do

Similar to long time, no see, no can do originated as a jab at non-native English speakers. According to the OED, this example was likely directed at Chinese immigrants in the early 20th century. Today, many people who use the phrase as general slang for "I can’t do that" are unaware of its cruel origins.

6. Indian Giver

Merriam-Webster defines an Indian giver as “a person who gives something to another and then takes it back.” One of the first appearances was in Thomas Hutchinson’s History of the Colony of Massachuset’s Bay in the mid 18th century. In a note, it says “An Indian gift is a proverbial expression, signifying a present for which an equivalent return is expected.” In the 19th century, the stereotype was transferred from the gift to the giver, the idea of an “equivalent return” was abandoned, and it became used as an insult. An 1838 N.-Y. Mirror article mentions the “distinct species of crimes and virtues” of schoolchildren, elaborating, "I have seen the finger pointed at the Indian giver. (One who gives a present and demands it back again.)" Even as this stereotype about indigenous people faded, the phrase Indian giver has persisted into the 21st century. The word Indian in Indian giver also denotes something false, as it does in the antiquated phrase Indian summer.

7. Cakewalk

In the antebellum South, some enslaved African Americans spent Sundays dressing up and performing dances in the spirit of mocking the white upper classes. The enslavers didn’t know they were the butt of the joke, and even encouraged these performances and rewarded the best dancers with cake, hence the name. Possibly because this was viewed as a leisurely weekend activity, the phrase cakewalk became associated with easy tasks. Cakewalks didn’t end with slavery: For decades, they remained (with cake prizes) a part of African American life, but at the same time white actors in blackface incorporated the act into minstrel shows, turning what began as a satire of white elites into a racist caricature of Black people.