FlashFeed

Full text

Gemini Gems are Google's answer to the annoyance of constantly having to repeat yourself to an AI chatbot. Like ChatGPT's custom GPTs, Gemini Gems are customized, reusable variations of Gemini that remember a specific role, history, and personality, so you don't have to keep explaining yourself every time you start a new chat.

Rather than beginning every conversation with housekeeping, you immediately start solving the problem you actually opened Gemini to tackle. You build a collection of specialists that already know their jobs. Open your travel planner when you're booking a holiday, your guitar coach when it's time to practice, or your meal planner when the refrigerator looks uninspiring, and each one picks up exactly where you left off.

I've made plenty of Gems, some more enduring than others. They're easy enough to make, but tweaking them to be just right can be tricky. If you want to see some of the more appealing (and sometimes just fun) possibilities of Gems, here are five of my favorites. I've written out the instructions I composed for the Gem at the end of each. Gemini can also edit and expand on even the simplest of descriptions, but more detail can help ensure the Gem does what you want.

Creating a Gem

The process of creating a Gem is easy, just click/tap on Gems in the left hand menu in the web browser version or the app version of Gemini, then New Gem. You can use the custom instructions from each of my five Gems if you'd like to recreate them yourself.

1. Family Adventure

(Image credit: Writer) Planning family outings has become its own part-time hobby. My wife and I have a two-year-old and an eight-month-old, so every trip has to thread a surprisingly small needle. It needs to be close enough that nobody spends half the day in the car, interesting enough to entertain everyone, stroller-friendly, and ideally open when we actually want to visit. That made Family Adventure Planner the first Gem to showcase.

Setting it up only took a few minutes. After creating the Gem, I conversed with Gemini through it and gave it some basic details about locations, interests, and the kinds of places we've enjoyed in the past. Once the Gem had all that information, I threw some different scenarios at it.

I asked it to plan a family outing for the coming Saturday within about an hour's drive. The Deep Research feature pushed the Gem to check what would actually be open that weekend, look for seasonal events taking place, verify opening hours, and even factor in temporary exhibits and admission prices before putting together a suggested itinerary.

The recommendation felt surprisingly complete. It suggested a nearby sculpture park with stroller-friendly paths, followed by lunch at a family-friendly café and an ice cream stop on the drive home. It also pointed out that arriving before mid morning would make parking easier, exactly the kind of practical advice that is easy to overlook until you're trying to unload two young children from the car.

I asked it to imagine that rain was forecast all day and that we still wanted to get out of the house. Instead of simply swapping a park for a museum, it built an entirely different plan around an interactive children's museum, suggested a nearby indoor play space if our oldest still had energy afterward.

The Gem also adapted quickly as I added more context. After mentioning that long waits at restaurants rarely end well with a hungry toddler and an eight-month-old, future itineraries naturally favored casual cafés, picnic spots, and places where food was readily available. It quietly learned from each conversation instead of making me repeat those preferences every time.

If your weekends usually begin with twenty minutes of searching before anyone leaves the house, this is probably the first Gem worth creating.

Family Adventure Planner instructions

You are an enthusiastic, creative, family-focused activity planner. Learn my family's ages, interests, travel preferences, and other details. Whenever I ask for ideas, recommend activities that are realistic, seasonal, and varied while avoiding suggestions I have recently tried unless I specifically ask for favorites. Include all relevant logistics details like times, costs, and packing suggestions.

2. Hobby Coach

(Image credit: Pixabay) Some hobbies are easy to put down for a while. Others seem to expect you to remember exactly where you stopped. That made Hobby Coach one of the first Gems I wanted to build.

I set it up with two of my biggest hobbies: learning guitar and backyard astronomy. I told it I was still a beginner guitarist working toward playing complete songs and that my astronomy interests revolved around learning the night sky with a modest telescope instead of serious astrophotography. Once that information was saved, I never had to explain it again.

To see how useful it would be, I spent an afternoon asking it to map out future practice sessions instead of simply answering questions. For guitar, it created a progression that built from my current skill level, suggesting chord exercises, songs that gradually increased in difficulty, and realistic milestones to aim for over the next several weeks. Everything fit into a longer learning plan.

Astronomy worked just as well. I asked it to plan a series of upcoming observing nights, and it suggested different targets depending on the season, moon phase, and what I wanted to learn. One evening focused on easy constellations, another introduced brighter deep sky objects, while another became a relaxed tour of the Moon and planets.

The Gem also uses Guided Learning as its default tool, which structures lessons into connected learning paths instead of isolated answers. It builds on previous lessons, introduces new skills at the right pace, and creates the feeling that you're working with a patient teacher who already understands your goals.

Hobby Coach instructions

You are an encouraging, knowledgeable, and patient personal coach for my hobbies. Learn my current experience level, equipment, goals, schedule, and preferred learning style for each hobby I share with you. Remember my progress over time and build each lesson naturally on previous conversations instead of starting from the beginning. Break complex skills into manageable practice sessions, celebrate improvements, and recommend realistic projects that keep me motivated without becoming overwhelming.

3. Movie and TV Curator.

(Image credit: Getty Images) Choosing something to watch should be one of the easiest parts of the evening, yet it often turns into an extended scrolling session. I knew that AI chatbots can be useful here, but a specific Gem for the endeavor felt like a good fit.

I gave my new Movie and TV Curator Gem everything it needed to know about our tastes. I told it which streaming services we subscribe to, the kinds of films my wife and I enjoy after the children are asleep, the comedies and mysteries we've already watched, and perhaps most importantly, that we have a two-year-old who is just beginning to sit through longer family movies.

That final detail completely shaped its recommendations. Instead of suggesting whatever happened to be popular, it focused on gentle, engaging films that would make good introductions to family movie nights without overwhelming a young child. It also remembered which movies we'd already seen so future recommendations wouldn't feel repetitive.

I asked it to build a month's worth of family movie nights, along with separate recommendations for date nights after the children were asleep. Within minutes, I had a calendar filled with classic animated films, newer family favorites, and several older movies that I had completely forgotten about but couldn't wait to introduce to my son.

It also understood the different kinds of evenings we have. A Friday after a busy week called for something light and funny, while a quiet Sunday evening was a better fit for a slower family film. I soon had a collection of family movie nights and grown-up viewing plans waiting whenever we needed them. Like the other Gems, it turned a repetitive decision into something I only had to think about once.

Movie and TV Curator instructions

You are a knowledgeable, conversational entertainment expert with excellent taste and a great memory. Learn my favorite genres, actors, directors, streaming services, viewing habits, and the movies and television shows I've already watched. Recommend films and series based on my mood, available time, and who will be watching, while avoiding unnecessary spoilers and repeating recent suggestions unless I ask. Explain why each recommendation suits my tastes, maintain a warm and enthusiastic personality, and regularly introduce overlooked classics alongside newer releases.

4. Outfit Planner

(Image credit: Google Gemini Gems) At first glance, Outfit Try On Planner sounded like a Gem I'd probably use once and then forget about. I enjoy looking reasonably presentable, but I wouldn't describe myself as someone who spends much time thinking about fashion. After setting it up, though, I realized it was less about keeping up with trends and more about making decisions before I actually needed to make them.

I started by teaching the Gem my style. I told it the kinds of clothes I usually wear, the colors I naturally gravitate toward, and the occasions I dress for most often. I also uploaded a few photos of myself so it could create realistic visualizations rather than relying on generic fashion models.

I asked it to put together outfit ideas for a fancy date, weekend trip, and a few other occasions. Seeing complete outfits instead of reading descriptions made decisions much easier. The most entertaining experiment had nothing to do with everyday clothes. I'd been thinking of dressing up for the Renaissance fair this year, so I asked the Gem to imagine me in a variety of Renaissance costumes before I bought or rented anything. You can see me as a hooded archer, an elaborately dressed nobleman, and a cheerful wandering bard carrying a lute.

Because the Gem remembers your appearance and preferences, it can help visualize costumes, themed party outfits, Halloween ideas, vacation wardrobes, or almost anything else you might wear before you spend money assembling it.

Outfit Try On Planner instructions

You are a friendly, fashion-savvy personal stylist with an eye for color, fit, and practicality. Help me create outfits using clothes I already own, visualize new pieces before I buy them, and suggest combinations that suit the occasion, weather, and my personal style. Ask questions before making recommendations. When I upload photos of clothing, accessories, or myself, use them to generate realistic outfit visualizations and styling ideas.

5. Personal Theme Song

The final Gem was the one I expected to be the silliest, yet it ended up being one of my favorites. Google recently added a Music tool to Gemini that can generate original songs from simple prompts, so I decided to build a Gem called Personal Theme Song Composer , dedicated entirely to turning everyday moments into music.

Setting it up only took a few minutes. I told it about the musical styles I enjoy, asked it to learn how I like songs to feel, and instructed it to ask questions about the people, pets, places, or memories behind each request before using Gemini's Music service to compose something original. Once those instructions were saved, I could jump straight into ideas instead of explaining the same preferences every time.

One of the first finished songs involved my dogs. Every dog owner eventually invents a ridiculous tune while clipping on the leads for a walk, so I asked the Gem to write something jaunty about my two excitable Chihuahuas that sounded like the opening theme to a cheerful television comedy. The result perfectly captured the determined little strut they adopt every time they head out the front door, and the melody stayed in my head for the rest of the day.

It perfectly summed up what makes Gemini Gems so useful. They are more than saved prompts. They are specialists that remember their role, making new capabilities like Gemini's Music tool feel less like an occasional novelty and more like a creative partner that's always ready when inspiration strikes.

Personal Theme Song Composer instructions

You are an imaginative, enthusiastic, and collaborative songwriter and music producer. Your goal is to help me create original songs that celebrate and vibe with whatever topic you're given. Before writing a song, ask enough questions to understand the story I want to tell, the mood, the musical genre, whether I want vocals or an instrumental, the intended audience, and any specific lyrics, phrases, or themes I want included. Suggest genres, tempos, instrumentation, and vocal styles that fit the idea. If I provide photos or other context, use them as inspiration for the music's tone and storytelling.

What makes Gems feel different from saving a handful of good prompts in a notes app is continuity of purpose. A prompt tells Gemini what to do once. A Gem remembers who it is supposed to be every time you come back. It remembers you, your favorite way of working, and the tools that help it do its job best, creating an experience that feels much more personal over time.

The five Gems here are really just a starting point. Once you get comfortable creating them, it becomes surprisingly easy to imagine building one for meal planning, another for packing for trips, or any other gems you want to fill your treasure chest with.

Full text

2026 has been a huge year for Harlan Coben fans, who have been treated to a few great crime shows from the renowned author. The first of the Coben-inspired shows to take the world by storm was Run Away , which began streaming on Netflix at the start of the year. Despite going up against the final season of Stranger Things , which aired its series finale on New Year’s Day, Run Away performed well on streaming charts, pulling over 40 million views during its time in the spotlight. Netflix further strengthened its partnership with Harlan Coben just a few weeks ago with the launch of his latest crime thriller, I Will Find You . The Sam Worthington and Britt Lower -led crime drama is still the biggest show in the world , even rising above House of the Dragon Season 3.

Full text

For the first time, a physicist has experimentally watched time emerge from within an isolated quantum system — by creating a “mini-universe.” This bizarre experiment raises an intriguing question: If the universe has nothing outside it, where does time come from?

In a new study published June 11 in the journal Physical Review Research , Giovanni Barontini , an experimental physicist at the University of Birmingham in the U.K., used a cloud of ultracold atoms to build his mini-universe. The system was so well isolated from its surroundings that, like the universe itself, it had nothing external to use as a clock. He split that system in two and ignored one half — what he called the "dark sector" — to show that time could arise entirely from within the system.

The result offers the first experimental look on why the universe has time at all. "When you put everything together, things really start to make sense," Barontini told Live Science. "How time inside the system was speeding up or slowing down, or even stopping — this was quite surprising, how well everything came together. Very neatly, in a way. Which is something that doesn't happen that often in experiments."

The work is an experimental verification of ideas that have been floating around in quantum cosmology and thermodynamics for decades. This is not a bombshell claim that time is an illusion , but it is the first time anyone has put those ideas to a direct, quantitative test in the lab.

A universe with nothing outside

Barontini set out to look at a problem that physicists have puzzled over for nearly 60 years. The Wheeler-DeWitt equation — a central equation in quantum gravity, the field that seeks to unify Einstein’s theory of gravity with quantum mechanics — describes the universe as a whole system with no external time parameter. There is no cosmic clock ticking away outside the universe. So where does our experience of time come from?

One influential idea, called relational time, says that time doesn't exist as a fundamental ingredient of reality. Instead, it emerges from relationships inside the universe, with one part of the system acting as a clock for another. But this idea had never been tested directly in the lab.

Barontini's inspiration came from watching his son play with building toys. "I thought that it's something very similar to what we do in our labs," he told Live Science. "We play with very expensive toys. We create our own small samples of reality."

In his lab, that sample is a Bose-Einstein condensate — a state of matter that forms only at near absolute zero. In a Bose-Einstein condensate, thousands of atoms slow to a near standstill and blur together into a single quantum object, behaving as one.

The University of Birmingham experiment to trap and cool rubidium atoms close to absolute zero — the first step in assembling the mini-universe. (Image credit: University of Birmingham) The dark side of time

To mimic a universe with nothing outside it, Barontini placed the condensate in a trap and divided it down the middle with a thin sheet of laser light. He watched one half, the "bright sector," closely and deliberately ignored the other half, which he called the "dark sector."

The atoms in the bright sector sloshed back and forth in the trap, periodically spilling over the barrier and back again. Barontini called the moments when atoms flooded into the bright sector the "Big Bang" and the times when they drained out the "Big Crunch" (the nickname for one theory of how the universe will end , with the universe collapsing in on itself). Then, he tracked how entropy — a measure of disorder, or how spread out energy is within a system — was exchanged between the two halves as atoms crossed the barrier.

Instead of using laboratory time to order events, he built an "entropic time" — a clock defined entirely by how much entropy was flowing between the two halves of the system. If entropy was flowing, time was ticking. If no entropy was exchanged, time stopped. "The entropy exchange between the two systems could be transformed into an internal time variable," Barontini said.

Time speeds up, slows down and stops

What surprised Barontini most was how cleanly everything fit together. The internal, entropic time reliably ordered events in the bright sector. It matched the sequence seen in laboratory time, but it flowed at a different rate.

When entropy was flooding between the sectors, entropic time ran fast. When the exchange slowed, so did the clock. And when the two halves reached equilibrium (no more entropy flowing), the internal clock stopped altogether.

Both time and the arrow of time — maybe they just are born from ignorance.

Giovanni Barontini, experimental physicist at the University of Birmingham

"Time was speeding up or slowing down, or even stopping, depending on what the system was doing," Barontini said.

He then went a step further: Using this internal time, he derived a version of the Schrödinger equation and showed it accurately reproduced what he saw in the experiment. "This was quite surprising, how well everything came together," he said — "very neatly, in a way, which is something that doesn't happen that often in experiments."

Both time itself and the arrow of time — why time flows in one direction rather than the other — may arise from the same source: an observer giving up information. When Barontini chose not to look at the dark sector, he gave up knowledge of that half of the system. That act of ignorance, encoded in entropy, is what gave rise to time in the other half.

"Both time and the arrow of time — maybe they just are born from ignorance," Barontini said. "To have time and to observe, you have to give up some degrees of freedom."

Related stories

Farthest 'mini-halo' ever detected could improve our understanding of the early universe

Scientists confirm that most of the universe is 'darkness and nothing more'

Stephen Hawking's black hole information paradox could be solved — if the universe has 7 dimensions

Barontini sees this as just the beginning. The same cold-atom tool kit that generated a miniature Big Bang and Big Crunch in his trap could, in principle, be engineered to simulate far more exotic phenomena, such as black hole analogues, the conditions of the early universe, and what will happen at the moment of the Big Crunch itself.

"These are things we can do very simply, using the tools we already have to engineer our systems," he said.

The study is a proof of concept ‪—‬ a first demonstration that controlled quantum systems can serve as a test bed for some unanswered questions in physics . For now, those questions remain open.