India is soon to come up with a venture capital (VC) fund for defense and aerospace innovation. Ajay Kumar, the former Secretary of the Ministry of Defence, revealed lately at an industry conference with a hint that a new era for deep technology in India is on the card. Kumar said that they are taking […]

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As the world eagerly awaits the celestial spectacle of the solar eclipse on April 8, 2024, our collective gaze turns skyward, not only to witness nature’s awe-inspiring display but also to honor a profound scientific legacy. This cosmic event marks a convergence of celestial mechanics and human ingenuity, echoing the groundbreaking discoveries of Albert Einstein and reminding us of the enduring significance of solar eclipses in shaping our understanding of the universe.

Eclipses have captivated humanity for millennia, their transient darkness inspiring awe, fear, and a thirst for knowledge. Yet it was Einstein’s theory of general relativity* that transformed these celestial events into invaluable laboratories for testing the fundamental laws of physics. His revolutionary insights challenged our very notions of gravity, space, and time, forever altering the course of scientific inquiry.

At the heart of Einstein’s general theory of relativity lies the principle that matter and energy warp the fabric of spacetime, creating a curvature that governs the motion of objects — a stark departure from Newton’s conception of gravity as a force acting between masses. One of the theory’s most audacious predictions was that light itself should be deflected by intense gravitational fields, a phenomenon that could be observed during a total solar eclipse.

It was the solar eclipse of May 29, 1919, that provided the first empirical evidence for Einstein’s groundbreaking ideas. Expeditions led by astronomers Arthur Eddington and Andrew Crommelin captured photographs of stars near the Sun’s position during the eclipse, revealing that their apparent positions had indeed shifted slightly — a result of their light being bent by the Sun’s immense gravitational pull. This observation, known as the “deflection of starlight by the Sun,” was a triumph for Einstein’s theory and a pivotal moment in the history of science.

Today, as we prepare to witness the celestial alignment of the Sun, Moon, and Earth once again, we stand on the shoulders of giants whose curiosity and perseverance unveiled the profound mysteries of the cosmos. Solar eclipses continue to offer invaluable opportunities for scientific exploration, from studying the Sun’s elusive outer atmosphere to verifying the effects of gravitational lensing predicted by general relativity.

But beyond their scientific significance, these fleeting moments of cosmic choreography remind us of our shared human experience — a collective awe that transcends borders and cultures. As the Moon’s shadow sweeps across the Earth’s surface, we are united in wonder, bearing witness to the intricate celestial mechanics that govern our universe.

So, as you gaze upward on April 8, 2024, remember that you are not merely observing a celestial event; you are partaking in a centuries-old tradition of cosmic exploration, honoring the legacy of Einstein and the countless scientists who have dedicated their lives to unraveling the mysteries of the universe. In that moment, you become part of a timeless narrative, a cosmic dialogue between humanity and the heavens that has shaped our understanding of the world we inhabit.

*The Theory of General Relativity

Albert Einstein’s theory of general relativity is a revolutionary theory that fundamentally changed our understanding of gravity, space, and time. Here is an overview of the theory and its key concepts:

Principle of Equivalence

The theory is based on the principle of equivalence, which states that gravitational and inertial forces are equivalent [6]. This means that the effects of gravity and acceleration are indistinguishable, and the force experienced in a gravitational field is the same as the force experienced in an accelerating reference frame.

Spacetime Curvature

General relativity describes gravity not as a force, but as a consequence of the curvature of spacetime caused by the presence of matter and energy [7]. Massive objects like stars and planets distort the fabric of spacetime around them, causing other objects to move along curved paths, which we perceive as the effect of gravity.

Geometry of Spacetime

In Einstein’s theory, spacetime is no longer a fixed, immutable background as in classical physics. Instead, it is a dynamic entity that can be distorted and curved by the presence of matter and energy [9]. The geometry of spacetime is described by Einstein’s field equations, which relate the curvature of spacetime to the distribution of matter and energy within it.

Relativistic Effects

General relativity predicts a variety of relativistic effects that have been experimentally verified, such as the bending of light by gravitational fields (gravitational lensing), the slowing of time in strong gravitational fields (gravitational time dilation), and the existence of black holes [8].

Unification of Gravity and Spacetime

One of the most profound aspects of general relativity is the unification of gravity with the concepts of space and time. Gravity is not a force acting over distances, but rather a manifestation of the curvature of spacetime itself [7]. This revolutionary idea challenged the long-held Newtonian view of gravity as a force acting between masses.

The theory of general relativity has had a profound impact on our understanding of the universe, from the formation and evolution of stars and galaxies to the behavior of black holes and the origin of the universe itself. It continues to be a cornerstone of modern physics and has withstood numerous experimental tests over the past century [8] [9].

Sources

• [6] Page 11 of “The Special and the General Theory-pdf.pdf”
• [7] Page 11 of “The Special and the General Theory-pdf.pdf”
• [8] Page 55 of “The Special and the General Theory-pdf.pdf”
• [9] Page 103 of “The Special and the General Theory-pdf.pdf”

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The 2024 Solar Eclipse and its Connection to Albert Einstein 105 Years Later was originally published in Becoming Human: Artificial Intelligence Magazine on Medium, where people are continuing the conversation by highlighting and responding to this story.

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Rocketlane, the leading B2B SaaS platform for client project delivery, today announced it has raised $24M in its Series B funding round, bringing the total funds raised to $45M. This latest round of funding comes at a time when the company still had $11 million in the bank. The Series B is co-led by 8VC, […]

In the latest era of artificial intelligence (AI), generative AI and deepfakes are becoming increasingly prevalent. The innovations are posing significant challenges and particularly the concern of misuse is high. The issue has come to the forefront in India with some recent incidents which highlighted urgent need for regulatory measures. Actor Rashmika Mandanna is one […]

I’ve tested dozens of AI chatbots since ChatGPT’s debut. Here’s my new top pick

Since the launch of ChatGPT, AI chatbots have been all of the rage because of their ability to do a wide range of tasks that can help you with your personal and work life.

The list details everything you need to know before choosing your next AI assistant, including what it’s best for, pros and cons, cost, its large language model (LLM), and more.

Not only this, but most of these tools are free and great alternatives to ChatGPT and outperform it in certain cases.

I have used and spent weeks and months on almost all of these AI bots, so you don’t have to waste time trying them.

But first, let me give you top tools you can leverage to improve brainstorming and content writing.

1) MIRO

Miro is an AI-native app designed to streamline the process of brainstorming, studying, organizing, note-taking and presenting ideas.

Create stunning visual content (mind-maps, flowcharts, presentations, etc.) simply by chatting.

Miro helps convert your notes and structured essays into beautiful mind maps. It can create an easy-to-understand visual presentation from any idea or prompt.

Just enter a prompt, and you get a beautiful chart of your choice amongst the 2500+ free concept map templates. It makes me and my team understand everything faster,more efficient, and save a tonne of time.

I use it to create stunning mind maps, visual brainstorming, creating flowcharts and other presentations from my unorganized notes and ideas especially for my work, and studies.

This app has completely revolutionized the way I take notes and record my ideas, as someone who enjoys taking notes and jotting down every idea, this app is truly a game-changer.

It is another value-for-money tool that is dirt cheap compared to the amazing features it provides. Trust me, you will absolutely fall in love with this app’s simplicity, user experience, and ease of use.

Pricing: Freemium

I strongly recommend it to everyone. Definitely a must-have visual productivity tool in your list.

MIRO is truly your perfect day-to-day visual study/brainstorming/ideation buddy.

https://miro.com/brainstorming/

2)QUILLBOT:

One great AI Productivity Writing tool I recently started using for day-to-day writing and tasks such as plagiarism checker, grammar checker, QuillBot-Flow , QuillBot AI Content Detector, Paraphraser, Summariser, and translator is QuillBot .

It is a great paraphrasing tool and can easily beat all the AI-content detectors out there.

I wanted to try something similar and cheaper than Grammarly(12$ per month).

I took up its yearly premium for around $4/month (58% off) . The price was literally dirt cheap compared to other writing tools I have used in the past.

I personally love QuillBot Flow, and the whole set of amazing writing tools it offers.

Personally, it’s UI and UX is very simple and easy to use. So I just wanted to share this awesome, productive tool with you all. Do check it out and use it in your day-to-day writing tasks.

It is literally a one-stop shop writing productivity tool for everyone.

https://try.quillbot.com/

I really insist you to go try the above tools out. Trust me, you won’t regret using these tools and will thank me later.

Let’s get started and check out these amazing AI bots that are the best alternatives to ChatGPT —

INDEX

1. Miro
2. Claude
3. Taskade
4. Perplexity
5. Notion
6. Jasper
7. ChatSonic

1) Miro

MIRO helps convert your notes, ideas, and structured essays into beautiful mind maps. It can create easy-to-understand visual content from any idea or prompt. Create stunning visual content (mind-maps, flowcharts, graphs for data analysis, presentations, etc) simply by chatting.

Pros

• Visual Tools: Excellent for brainstorming, flowcharts, and presentations. One of the best out there in my opinion.
• Templates: Thousands of free concept map templates are available.
• Note-Taking: Revolutionizes note-taking and idea recording.
• Versatility: Ideal for work, research, brainstorming, and study-related projects.

Cons

• None found, to be honest. It’s an excellent tool overall a great visual content creation tool, and an awesome alternative to ChatGPT.

Try it here — https://miro.com/brainstorming/

2) Claude

Best AI chatbot for image interpretation. I think the biggest advantage of this chatbot is its visual assistance. Even though ChatGPT can accept image and document inputs, I noticed that Claude can assist with interpreting images in a much faster manner.

Pros

• Upload document support
• Chat controls
• Light and dark mode

Cons

• Unclear usage cap
• Knowledge cutoff

Try it here — https://claude.ai/

3) Taskade

All-in-one AI productivity, ideation, writing, coding and mind-mapping, task/Project management app. Free to use with a value-for-money pro plan.

Pros

• Productivity Tool: Comprehensive AI-everything tool for writing and task management.
• AI Prompt Templates: Over 1000 templates for academic and productivity tasks.
• Versatile AI Agents: Research, coding, summarizing, tutoring, and content creation.
• One-Stop Shop: Integrated tool for all writing and productivity needs.

Cons

• Learning Curve: Requires time to explore and utilize all features.

Try it here — https://www.taskade.com/

4) Perplexity

Focused on providing accurate and detailed answers, Perplexity AI is a go-to for research-based queries and in-depth explanations. Great tool for research with very low hallucinations and limited free usage.

Pros

• Links to sources
• Access to internet
• simple UI
• Provides prompt suggestions to get chats started

Cons

• Paid subscription required for GPT-4 access
• Some irrelevant suggestions

Try it here — https://www.perplexity.ai/

5) Notion

Pros

• All-in-One Tool: Comprehensive productivity and task management in one place.
• AI Integration: Competes with Google Docs and Microsoft Office, enhancing productivity.
• Knowledge Management: The industry leader in combining knowledge management and AI.
• Cost-Effective: Affordable with a wide range of features.
• Top-Ranked: Recognized as a leading productivity tool.

Cons

• Complexity: It may have a steep learning curve due to extensive features.
• Overwhelming: It can be overwhelming for new users to navigate all functionalities.

Try it here — https://www.notion.so/

6) Jasper AI

Jasper offers extensive tools to produce better results. It can check for grammar and plagiarism and write in over 50 templates, including blog posts, Twitter threads, video scripts, and more. It also offers SEO insights and can even remember your brand voice.

Pros

• 50 different writing templates
• Copyediting features
• Plagiarism checker

Cons

• Need a subscription to try
• Steep cost

Try it here — https://www.jasper.ai/

7) ChatSonic

The Writesonic platform offers tools that help generate stories, including Instant Article Writer, which creates an article from a single click; Article Rewriter, which rephrases existing content; and Article Writer 5 & 6, which generates articles using ranking competitors and are SEO optimized.

Pros

• SEO tools — SEO Checker and Optimizer inbuilt
• Integration with Google Search
• Multiple Templates
• Creative Capabilities
• AI Personalities

Cons

• Word Limits
• Image Quality

Try it here — https://writesonic.com/chat

CONCLUSION

I hope you enjoyed reading this blog about some amazing free alternatives to ChatGPT out there, which can help you save some bucks and be super productive.

Do check out these AI ChatBots, save this post in your reading list, and bookmark them.

Awesome, you have reached the end and have already become smarter, more effective, and more productive just by learning about these awesome ChatGPT-4 alternatives and tools. The next step is to use them. Good luck!

The cheat sheet,save this, and keep it as a reference:

https://medium.com/media/0d0ac6f70de97d8c6f92bad88f4abd20/href

Please take something of value from this blog post and this cheat sheet.

Let’s harness the power of AI and technology to create a better future.

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Top Free AI Chatbots: The Best Free ChatGPT Alternatives was originally published in Becoming Human: Artificial Intelligence Magazine on Medium, where people are continuing the conversation by highlighting and responding to this story.