Monday, January 5, 2026

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Sunday, January 4, 2026

How to Use "Thinking with 3 Pro" in Google Gemini

How to Use "Thinking with 3 Pro" in Google Gemini

Unlock deep reasoning, self-correcting logic, and dynamic visual layouts with Google's most powerful AI mode yet.

By Rodger Mansfield, Technology Editor
January 4, 2026


Google Gemini
Have you ever stared at a complex problem and wished you could see the actual thought process behind the answer? 

Here's a Cool Tip:  Think with Gemini 3 Pro.

Google has just rolled out "Thinking with 3 Pro," a new mode in the Gemini app and Google Search that does exactly that, pausing to reason, plan, and even self-correct before it speaks.

Google Gemini 3 Pro

What Is "Thinking with 3 Pro"?

"Thinking with 3 Pro" is a specialized toggle available within the Gemini interface that activates Google's Gemini 3 Pro model, released in late 2025. 

Unlike the standard "Fast" mode (powered by Gemini 3 Flash), this mode dedicates significantly more compute power to "ponder" your query. 

It breaks down multi-step problems, writes and tests code internally, and generates dynamic visual layouts, like interactive charts or custom simulations—right in the chat window.

What You’ll Gain
  • Transparent Logic: See the "Thought Signatures" where the AI shows its reasoning steps.
  • Higher Accuracy: Reduced errors in math, coding, and logic puzzles due to internal self-correction.
  • Dynamic Visuals: Generate on-the-fly infographics and interactive tools instead of just text.
  • Deep Research: Handle queries that require synthesizing data from dozens of sources.

Step-by-Step Instructions

Here's how to do it.

On Desktop (Web)
  1. Navigate to Google Search, www.Google.com.
  2. Select AI Mode.
  3. Select 'Thinking with 3 Pro' from the AI Mode dropdown.
  4. Or Navigate to gemini.google.com.
  5. Select 'Thinking' or 'Pro'.
  6. Type a complex prompt (e.g., "Create a 7-day meal plan for a family of four, optimizing for zero food waste by reusing ingredients across multiple recipes").
  7. Google generates the output.
Thinking with 3 Pro Example

fig. 1 - Thinking with 3 Pro


Thinking with 3 Pro Response Example

fig. 2 - Thinking with 3 Pro Response Example

On iOS & Android (Gemini App)
  1. Open the Google app or Gemini app.
  2. Tap the Model Switcher pill button near the bottom of the screen.
  3. Choose 'Thinking' (indicated by a brain icon).
  4. Enter your prompt.

Pros and Cons

Pros
  • Superior Reasoning: Solves complex math and logic riddles that stump standard models.
  • Self-Correction: If the model detects a logic error during its "thought process," it backtracks and fixes it before showing you the result.
  • Interactive Outputs: Can render playable code snippets or data visualizations directly.

Cons
  • Slower Speed: Responses can take 10–30 seconds to start while the model "thinks."
  • Usage Limits: Free users have a limited number of "Thinking" queries per day; heavy use requires a Google AI Ultra subscription.
  • Overkill for Chat: Not necessary for simple questions like "What is the capital of France?"
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Feature Access
  • Availability: Currently available globally in English to all users on the Gemini App and Web.
  • Free Tier: Includes a daily cap of "Thinking" prompts (resets every 24 hours).
  • Subscription: Google AI Ultra subscribers get significantly higher limits and priority access during peak times.
  • Rollout: Full "Deep Think" features rolled out as of December 2025.

Score

Criterion  |  Score (0–10)  | Justification

Value 9
Essential for complex tasks where accuracy matters more than speed.

Usability 8
The toggle is easy to find, though the wait time requires patience.

Wow Factor 10
Watching the AI "self-correct" its own logic in real-time is genuinely futuristic.

Total: 27/30  🌟 Excellent
This is a massive leap forward for power users, offering a level of transparency and reliability that makes it a viable alternative to hiring a research assistant.

Key Takeaways

Use Thinking with 3 Pro for math, coding, and complex planning, not for casual chat.

Expand the "Thinking" dropdown to verify how the AI arrived at its answer.

Free users should save their daily "Thinking" allowance for their hardest problems.

Cool Tip Snapshot
  • Feature Name: Thinking with 3 Pro
  • Platform(s): Web, Android, iOS
  • Quick Benefit: Solves complex problems by "thinking" before speaking.
  • Access Type: Free (Limited usage), Subscription (higher usage limits)

Try It Yourself

Open Gemini right now, switch to "Thinking" mode, and ask it to "Solve this riddle: I speak without a mouth and hear without ears. 

I have no body, but I come alive with wind. What am I? And explain your logical steps."


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Saturday, January 3, 2026

Explain My Answer Is Now Free on Duolingo

Explain My Answer Is Now Free on Duolingo

Duolingo just unlocked one of its most useful learning features for everyone, and it quietly changes how effective free language practice can be.

By Rodger Mansfield, Technology Editor
January 3, 2026


Duolingo Owl
If you have ever answered a Duolingo question correctly but had no idea why, you already know the frustration. 

You move on, you keep your streak, but the underlying rule never quite clicks. 

For years, the fix was locked behind a paid tier. 

Here's a Cool Tip:  Explain My Answer is Now Free on Duolingo.

Duolingo’s “Explain My Answer” feature is now free, and it reshapes how the app teaches rather than just tests.

Duolingo Explain My Answer

Feature Explanation

Explain My Answer is a contextual learning tool inside Duolingo that appears after you answer a question. 

When tapped, it breaks down why your answer worked or did not, using plain language explanations tied directly to the sentence you just saw.

Instead of generic grammar lessons, Duolingo explains the rule at the exact moment your brain is ready for it. 

That timing matters. Cognitive science consistently shows that feedback delivered immediately after an attempt is retained far better than delayed explanations.

Previously, this feature was restricted to Super Duolingo subscribers. 

According to Duolingo’s own announcement, it is now available to free users across supported platforms, with ads still present but explanations fully accessible.

This is not a cosmetic change. 

It turns Duolingo from a repetition engine into a guided learning system.

What You’ll Gain

  • Why this matters immediately.
  • Understand why an answer works, not just whether it is right.
  • Learn grammar rules naturally, without separate study sessions.
  • Reduce repeated mistakes caused by pattern guessing.
  • Make free Duolingo feel meaningfully closer to a tutor experience.

Step-by-Step Instructions

iOS
  1. Complete a lesson question in the Duolingo app.
  2. Tap Explain My Answer after your response.
  3. Read the explanation and examples.
  4. Dismiss and continue the lesson.

Duolingo Explain My Answer Example
credit: Duolingo

fig. 1 - Duolingo 'Explain My Answer' Example

Note:
  • Explain My Answer is available in Spanish, French, German, Portuguese, Italian, and Korean.
  • Free on iOS, and coming soon to Android.

Pros and Cons

Pros
  1. Improves learning quality without increasing time spent.
  2. Eliminates guess-and-repeat frustration.
  3. Makes free Duolingo viable for serious learners.
  4. Especially helpful for grammar-heavy languages.

Cons
  1. Only available for select languages and iOS.
  2. Explanations vary in depth by language and sentence.
  3. Ads still interrupt the learning flow for free users.
  4. No offline access to explanations.
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Feature Access
  • Who gets it: Free and paid users
  • Platforms: iOS (Android soon).
  • Subscription required: No
  • Rollout status: Free starting January 1, 2026

Score

Criterion Score (0–10) Justification

Value 9
Turns free Duolingo into a true learning tool rather than a drill app.

Usability 8
Appears exactly when needed with no configuration required.

Wow Factor 7
Not flashy, but quietly transformative for learners.

Total: 24/30 👍 Good
This closes the gap between free and paid language learning more than any recent Duolingo change, rivaling basic grammar explanations in paid competitors.

Key Takeaways

Duolingo’s biggest weakness was never content, it was context. 

Making explanations free removes that weakness for millions of learners. 

If you use Duolingo regularly and have not noticed this feature yet, it is worth checking today.

Cool Tip Snapshot
  • Feature Name: Explain My Answer.
  • Platform(s): iOS (Android soon).
  • Quick Benefit: Understand grammar at the moment you make a mistake.
  • Access Type: Free.

Try It Yourself

Open your next Duolingo lesson and tap Explain My Answer after every question today. 

Notice how much less guessing you do. 

Share this tip with your family or team, leave a comment on OneCoolTip.com, and subscribe to the One Cool Tip newsletter so you never miss a useful upgrade like this.


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Friday, January 2, 2026

Watch Retro TV Online Without an Antenna or Subscription

Watch Retro TV Online Without an Antenna or Subscription

Classic television never disappeared. It just moved to the browser. With the right site, you can flip channels, relive old schedules, and watch retro TV exactly as it once aired.

By Rodger Mansfield, Technology Editor
January 2, 2026


Have you ever wanted to watch television the way it used to be watched, not on demand, not algorithmically recommended, but simply by turning on the TV and seeing what was on? 

For many people, streaming solved convenience but erased the experience of channel surfing, time slots, and surprise reruns. 

Here's a Cool Tip:  Watch Retro TV!

Retro TV sites bring that feeling back, and one in particular does it better than most.

Watch Retro TV Online

Feature Explanation

My Retro TVs is a browser-based experience that recreates classic television stations from past decades. Instead of selecting a specific episode, you tune into a channel. 

Shows play in sequence, complete with the feel of scheduled programming.

The site groups content into themed stations such as 70s sitcoms, 80s action shows, classic cartoons, old game shows, and vintage commercials. 

You do not control the timeline. 

The timeline controls you, which is exactly the point.

Technically, the service streams curated playlists that simulate continuous broadcast. 

From a user perspective, it feels like turning on an old television and landing on a channel mid-episode. That frictionless simplicity is why it matters. 

It removes choice fatigue and restores passive viewing, which many users now find relaxing rather than limiting.

What You’ll Gain

A nostalgic TV experience without subscriptions or logins

Effortless background viewing for work or home

Exposure to shows you forgot existed

A reminder that entertainment does not need personalization to be enjoyable

Step-by-Step Instructions

Here's how to do it.

Web (Windows, macOS, ChromeOS)
  1. Open your browser and go to myretrotvs.com.
  2. Choose a virtual TV set (50s, 60s, 70s...) from the homepage. Each represents a themed group of channels.
  3. Click the Power button.
  4. Click a Year.
  5. Click the channel button to switch stations just like flipping channels.
Watch Retro TV
fig. 1 - Watch Retro TV
iOS
  1. Open Safari or any modern browser.
  2. Visit myretrotvs.com.
  3. Rotate your phone to landscape for a better viewing layout.
  4. Tap a channel and let it play.

Android
  1. Open Chrome or your preferred browser.
  2. Navigate to myretrotvs.com.
  3. Select a retro TV set and tap a channel.
  4. Optional: enable desktop mode for a larger channel grid.

Pros and Cons

Pros
  • Free to use with no account required.
  • Works on nearly any modern device.
  • Encourages relaxed, passive viewing.
  • Great conversation starter in classrooms or offices.

Cons
  • No episode selection or skipping.
  • Limited control over playback timing.
  • Availability of specific shows can change without notice.
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Feature Access
  • Platform: Web-based.
  • Devices: Desktop, laptop, tablet, phone.
  • Cost: Free.
  • Availability: Public, no sign-up required.
  • Region: Global access, content availability may vary.

Score

Criterion |  Score (0–10)  |  Justification

Value 9
Delivers a unique experience at no cost with minimal friction.

Usability 8
Extremely simple, though intentionally limited controls may frustrate some users.

Wow Factor 8
Nostalgia plus authenticity creates an unexpectedly engaging experience.

Total: 25/30 🌟 Excellent
A refreshingly different way to watch TV that values experience over control, unlike on-demand platforms that prioritize choice above all else.

Key Takeaways

Retro TV streaming restores a lost viewing style that many people miss without realizing it. 

By removing choice overload, it creates a calmer and more engaging entertainment experience.

Sometimes less control leads to more enjoyment.

Cool Tip Snapshot
  • Feature Name: My Retro TVs
  • Platform(s): Web
  • Quick Benefit: Watch classic TV like it originally aired
  • Access Type: Free

Try It Yourself

Open a channel, let it play for ten minutes, and notice how different it feels from modern streaming. 

Share your favorite find in the comments, subscribe to the One Cool Tip newsletter, and pass this article along to friends and family who miss old-school TV.

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Rodger Mansfield
a seasoned technology expert and editor of OneCoolTip.com, transforms complex tech into practical advice for everyday users. His Cool Tips empower readers to stay productive, secure, and one step ahead in the digital world.



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Rodger Mansfield, a seasoned tech expert, is the mastermind behind www.OneCoolTip.com where he serves as both writer and editor. With a keen eye for simplifying complex tech, Rodger delivers practical advice that empowers readers to navigate the digital world with confidence. Dive into www.OneCoolTip.com for a treasure trove of savvy tips and tricks that keep you one step ahead in tech.

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Thursday, January 1, 2026

5 Cool Tips for a Better New Tech Year

5 Cool Tips for a Better New Tech Year

Small, deliberate resets can dramatically improve your security, speed, and sanity across every device you use. These five practical moves take less time than you think and pay off all year long.  A new year is the perfect moment to clean up the digital clutter that quietly slows you down. 

By Rodger Mansfield, Technology Editor
January 1, 2026



5 Cool Tips
When technology starts feeling sluggish or risky, the cause is rarely a single big failure. 

It is usually dozens of small issues piling up quietly. 

Old passwords reused too often. 

Browsers bloated with cached data. 

Your overloaded inbox masks what you need to read.

The start of a new year is the rare moment when people are willing to reset habits, not just devices. 

That makes it the ideal time to fix the fundamentals that shape every workday and every login.

5 Cool Tips for a New Tech Year