A basic concept in electrical engineering and electronics is that of inductance. It is defined by Examples.com as “a property of electrical circuits where a change in electric current generates an opposing electromotive force through a magnetic field.”

To reiterate, then, inductance occurs due to a changing current in a conductor (such as a coil or wire) inducing a magnetic field. This, in turn, induces a voltage opposing the current change, in accordance with Lenz’s Law. It is an effect that plays a critical role in such components as inductors, transformers, and motors.

What Are the Units for Measuring Inductance?

The base unit for inductance in the International System of Units (SI) – the modern form of the metric system – is the henry (H). It is named after the American physicist Joseph Henry (1797-1878), who discovered self-inductance in an electric circuit.

The henry represents the amount of inductance that will produce a voltage of one volt when the current is changing at a rate of one ampere per second. Or to put it a simpler way: it quantifies the effectiveness with which a coil opposes changes in electric current.

While the henry is the standard unit for measuring inductance, inductors in electronic circuits frequently have much smaller values. To measure these, the millihenry (mH) or microhenry (µH) is typically used.

How Are These Inductance Units Related To Each Other?

Making a note of or memorising these relationships between henries, millihenries, and microhenries will serve you well in situations when you need to carry out quick conversions but might not have a calculator or conversion tool to hand:

How To Convert Between the Units of Inductance

Here, then, is your “cut out and keep” rundown of what you need to do to convert from one unit of inductance to another, whatever the given practical application may be:

So, to give an example, if you needed to work out how much2 henries would be in millihenries, the relevant calculation would be 2 H x 1,000 = 2,000 mH.

Or if you were trying to determine what 500,000 microhenries would be when converted to henries, you would use the formula 500,000 µH / 1,000,000 = 0.5 H.

Couldn’t You Just Use a Calculator to Convert from One Inductance Unit to Another?

Such tools are certainly easy enough to find online. It is a straightforward process to convert between henry and millihenry with this calculator on the RS website; you simply need to enter the relevant input value, before clicking “Calculate”.

As we alluded to above, though, you might not always have access to a device or the Internet in order to use such online tools. In any case, getting to grips with the aforementioned manual calculations can help reinforce your awareness and understanding of how henries, millihenries, and microhenries relate to each other.

To summarise, then, both manual calculations and the use of online conversion tools can be useful and relevant, including for verifying the accuracy of results. Combining these approaches can therefore help optimise both the speed andprecision of your work whenever you find yourself needing to convert between these units of inductance.

Imagine a small, fluffy companion with the soulful eyes of a Shih Tzu and the playful, spirited charm of a Havanese. This isn’t a fictional creature from a storybook; it’s the delightful reality of the Shihuanuo (pronounced shee-wah-nwo), one of the most charming and affectionate “designer dogs” you can welcome into your home. A cross between the regal Shih Tzu and the cheerful Havanese, this hybrid combines the best traits of two beloved toy breeds into one irresistible package.

If you’re looking for a lapdog with personality, intelligence, and a hypoallergenic coat, you’ve come to the right place. This comprehensive guide will walk you through everything you need to know about the Shihuanuo, from its temperament and grooming needs to health considerations and how to find a reputable breeder.

What Exactly is a Shihuanuo?

The Shihuanuo is a first-generation (F1) crossbreed, meaning it’s a direct mix of a purebred Shih Tzu and a purebred Havanese. As a designer dog, its primary purpose is to be a companion animal, blending the desirable characteristics of its parent breeds.

• Shih Tzu Parent: Known as the “Lion Dog,” the Shih Tzu is an ancient breed with roots in Tibetan and Chinese royalty. They are known for their affectionate, outgoing, and sometimes stubborn nature. Their long, flowing double coat is a signature trait.
• Havanese Parent: Hailing from Cuba, the Havanese is the national dog of that country. They are intelligent, trainable, and incredibly social “velcro dogs” that thrive on human interaction. They have a silky, soft, and lightweight single coat that is considered hypoallergenic.

By combining these two, breeders aim to create a healthy, happy, and well-rounded companion that minimizes some of the potential health issues found in purebred lines.

Appearance: A Surprise in Every Litter!

One of the most exciting things about mixed-breed dogs is their unpredictability. A Shihuanuo can take after either parent or be a perfect blend of both. However, there are some general characteristics you can expect.

• Size: As a toy breed mix, the Shihuanuo is small. They typically weigh between 7 to 15 pounds (3 to 7 kg) and stand about 9 to 11 inches (23 to 28 cm) tall at the shoulder.
• Coat: This is where the biggest variation occurs. Their coat can be:
  • Long and silky like a Havanese.
  • Thick and double-coated like a Shih Tzu.
  • Somewhere in between—wavy and soft. Common colors include black, white, cream, brown, silver, and any combination of these (parti-color).
• Face: They often have a sweet, expressive face with dark, round eyes. The muzzle can be slightly longer than a Shih Tzu’s but shorter than a Havanese’s. Their ears are typically floppy and covered in soft hair.
• Build: They have a sturdy, compact body with a plumed tail that often curls over their back.*

Temperament and Personality: A Bundle of Joy and Love

If you want a dog that will be your shadow and best friend, the Shihuanuo fits the bill perfectly. Their temperament is generally a winning combination of sweet and spunky.

• Affectionate and Loyal: This breed is a quintessential “lap dog.” They form incredibly strong bonds with their families and love to cuddle. They are true companions who want to be involved in every aspect of your day.
• Playful and cheerful: Inheriting the Havanese’s happy-go-lucky attitude, Shihuonuos have a playful side. They enjoy short bursts of playtime indoors and will happily chase a ball or play with puzzle toys.
• Good with Families and Other Pets: Their gentle and friendly nature makes them excellent pets for families with older, respectful children. They usually get along well with other dogs and even cats, especially if socialized from a young age.
• Intelligent but Sometimes Stubborn: They are smart cookies and can learn tricks quickly. However, they can inherit a stubborn streak from the Shih Tzu side, which may require a patient and consistent training approach with positive reinforcement.
• Alert and Watchful: Don’t let their size fool you. They make excellent little watchdogs and will bark to alert you of anything unusual. Early training can help manage excessive barking.*

Living with a Shihuanuo: Care, Grooming, and Exercise

Caring for a Shihuanuo is generally manageable, but their gorgeous coat does require a commitment.

Grooming Needs (High Maintenance) This is the most demanding aspect of owning this mix. To prevent mats and tangles, their coat requires daily brushing. Many owners opt for a shorter “puppy cut” to make maintenance easier. Regular grooming tasks include:

• Brushing: Daily with a slicker brush and metal comb.
• Bathing: Every 3-4 weeks with a good quality dog shampoo and conditioner.
• Eyes and Ears: Their eyes need daily wiping to prevent tear staining (common in Shih Tzus). Ears should be checked and cleaned weekly to prevent infections.
• Professional Grooming: A trip to a professional groomer every 4-6 weeks is highly recommended for trimming and a thorough clean.

Exercise Requirements (Low to Moderate) The Shihuanuo is perfectly suited for apartment living. Their exercise needs are modest.

• Daily Walks: One or two short walks (15-20 minutes each) per day are sufficient.
• Indoor Play: They get most of their exercise through indoor playtime. They love games of fetch down the hallway or learning new tricks for treats.
• Mental Stimulation: This is key! Their intelligent minds need to be engaged. Puzzle toys, hide-and-seek, and short training sessions are fantastic ways to keep them from getting bored.*

Training and Socialization Start training and socialization early. Their intelligence means they respond excellently to positive reinforcement methods like treats, praise, and play. Harsh methods will not work with this sensitive breed.

• Socialization: Expose your puppy to different people, places, sounds, and other animals in a positive way. This will help ensure they grow into a well-adjusted and confident adult dog.
• Potty Training: This can sometimes be a challenge with small breeds. Consistency, a regular schedule, and plenty of praise for successes are crucial. Many owners find using puppy pads helpful, especially for those living in apartments.

Health and Lifespan: What to Expect

As a crossbreed, the Shihuanuo can benefit from “hybrid vigor,” potentially reducing the risk of some inherited disorders common in purebreds. However, they can still be prone to health issues common in their parent breeds. A responsible breeder will health-test both parent dogs.

Common Health Concerns:

• Patellar Luxation: A common condition in small breeds where the kneecap dislocates.
• Eye Problems: Including cataracts, progressive retinal atrophy (PRA), and cherry eye.
• Hip Dysplasia: Though less common in small dogs, it can still occur.
• Dental Issues: Small dogs are prone to overcrowding and periodontal disease. Daily teeth brushing is highly recommended.
• Brachycephalic Issues: If they inherit the Shih Tzu’s shorter muzzle, they can be prone to breathing difficulties in hot or humid weather.*

Lifespan: With proper care, a balanced diet, and regular veterinary check-ups, a Shihuanuo has a typical lifespan of 12 to 15 years.

Is the Shih Tzu Havanese Mix the Right Dog for You?

Choose a Shihuanuo if you:

• Want a devoted, affectionate, and loyal companion.
• Live in an apartment or a home without a large yard.
• Are a less active individual, a senior, or a family with older children.
• Don’t mind committing to a high-maintenance grooming routine.
• Are home often, as they don’t like to be left alone for long periods.*

Think twice if you:

• Want a low-maintenance dog in terms of grooming.
• Have a very busy lifestyle and are away from home for 8+ hours a day.
• Are looking for a jogging or hiking partner.
• Prefer a completely silent dog (they can be vocal).

Finding a Shihuanuo Puppy

If you’ve decided this is the breed for you, your next step is finding a responsible source.

• Reputable Breeders: This is the best option. A good breeder will:
  • Health-test their parent dogs.
  • Welcome you to meet the puppies and their parents.
  • Ask you many questions to ensure you’re a good fit.
  • Provide a health guarantee and be available for support.
• Rescues and Shelters: Check breed-specific rescues for Shih Tzus and Havanese. You may find a mixed-breed dog or an adult Shihuanuo in need of a loving home. This is a wonderful way to give a dog a second chance.

Conclusion: A Heartwarming Companion

The Shihuanuo is more than just a cute face; it’s a breed overflowing with love, personality, and charm. They offer the perfect blend of regal grace and playful clownishness, making every day a little brighter. While their luxurious coat demands dedication, the reward is an unparalleled bond with a tiny, devoted friend who will undoubtedly become the heart of your home. If you’re ready for a lifetime of cuddles, companionship, and a little bit of glamour, the Shih Tzu Havanese mix might just be your perfect match.

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You hear the phrase casually tossed across a table, shouted from a kitchen, or whispered with a smile among friends: “Yalla, choy!” It’s more than a simple suggestion; it’s an invitation, a moment of pause, and a deeply ingrained ritual of hospitality that stretches across the Arab world and beyond. But what exactly does it mean? Is it just about drinking tea, or is there a richer story steeped in this simple phrase?

At its most direct translation from Arabic, “Yalla” means “let’s go” or “come on,” and “choy” is a colloquial term for tea, influenced by global trade routes (from the Chinese “chá”). So, “Yalla choy!” literally translates to “Let’s go, tea!” or more naturally, “Come on, let’s have tea!” However, to stop at the translation is to miss the entire heart of the matter. This phrase is a key that unlocks a world of social connection, tradition, and warmth.

The Deeper Meaning: The Culture in a Cup

“Yalla choy” isn’t just about consuming a beverage. It’s a social contract. It’s a way to:

• Pause Time: In a world that’s always rushing, “yalla choy” is a command to stop. It carves out a mandatory break from work, worry, or the daily grind to simply be with another person.
• Offer Hospitality: In Arab and Middle Eastern cultures, offering tea to a guest is almost a sacred duty. It’s the first thing you do when someone enters your home. To refuse is almost unthinkable. “Yalla choy” is the embodiment of this generosity.
• Facilitate Conversation: Tea is the catalyst for dialogue. It’s much easier to discuss life, business, family, or dreams with a warm cup in your hand. The ritual of pouring and sipping provides a comfortable rhythm to the flow of conversation.
• Solve Problems: A huge number of disputes, business deals, and family matters have been resolved over a pot of tea. There’s a famous Arabic saying that loosely translates to, “We will drink tea until the problem becomes clear.”

The Tea Itself: What’s in the Pot?

When someone says “Yalla choy,” what kind of tea are they likely serving? While preferences can vary by region and family, there are a few classic contenders.

1. Moroccan Mint Tea (Atay)

Often called “Berber whiskey,” this is perhaps the most ceremonial. It’s a green tea (usually Chinese Gunpowder tea) steeped with fresh spearmint leaves and a generous amount of sugar. It’s poured from a height into small glasses to create a froth, which is a sign of a good pour and a hospitable host.

• The Ritual: The preparation and pouring are an art form. The tea is often poured and poured back into the pot multiple times to mix the flavors before being served to guests.*

2. Egyptian/Saudi Chai (Koshary or Saiidi)

In many parts of the Levant and Egypt, “choy” often refers to a strong black tea. It can be served plain (sada) or with sugar (mazboot meaning “just right” or ziyada meaning “extra”).

• The Ritual: It’s commonly boiled directly in a pot, often with fresh herbs like mint (na’ana*) or sage (maryamiya). It’s strong, dark, and served in small glasses.

3. Turkish Çay

While linguistically different (“çay” is the Turkish word), the culture is deeply similar. Turkish tea is brewed using a double-stacked teapot (çaydanlık), resulting in a very strong concentrate that is then diluted with hot water to each drinker’s preference.

• The Ritual: Served in delicate, tulip-shaped glasses without handles, it’s a ubiquitous sight in homes and shops everywhere.*

The “Yalla Choy” Moment: When Do You Hear It?

The beauty of the phrase is its versatility. It fits seamlessly into countless everyday scenarios:

• The Morning Kickstart: Instead of a solitary coffee run, it’s a call to a family member: “Yalla choy, we need to plan our day.”
• The Afternoon Break: The post-lunch slump is met with, “Yalla choy, let’s take a break and talk.”
• The Evening Wind-Down: After dinner, the tea pot comes out again. It’s a digestif and a way to extend the company before guests leave.
• The Business Meeting: In many shops from Marrakech to Dubai, discussing a price isn’t complete without first sharing a tea. It builds rapport and trust.
• The Unexpected Guest: The moment someone arrives, the automatic response is to put the kettle on and say, “Yalla, sit, choy!”*

How to Embrace the “Yalla Choy” Spirit (Even if You’re Not Middle Eastern)

You don’t need a specific type of tea or a fancy pot to capture the essence of this tradition. It’s about the intention. Here’s how you can bring this philosophy into your own life:

1. Be the Instigator: Don’t wait for a special occasion. Be the person who says, “Hey, let’s put the kettle on and chat for ten minutes.” Your “yalla choy” moment can be with coffee, herbal tea, or even hot chocolate.
2. Prioritize Presence: When you do have your tea moment, be there. Put your phone away. It’s about the person across from you, not the screen in your hand.
3. Offer Generously: The act of making a drink for someone else is a simple but profound act of care. It says, “Your comfort is important to me.”
4. Listen: The tea is the excuse; the conversation is the purpose. Practice active listening and enjoy the exchange.

A Phrase That Builds Bridges

“Yalla choy” is a beautiful example of how language and food culture intertwine to create social glue. It’s a phrase that transcends its simple words to become a symbol of welcome, patience, and human connection. In a time where digital interaction often replaces face-to-face conversation, the principle behind “yalla choy” is more valuable than ever.

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