正在加载视频...

视频加载失败

加载此视频时出现问题。这可能是由于临时网络问题，或视频可能不可用。

Buffon's needle problem, a probability experiment first posed by Georges-Louis Leclerc, Comte de Buffon in 1777, which demonstrates how the value of it (pi) can be estimated by dropping needles and observing the proportion that cross a line.

Science girl

3,865,097 subscribers

29,545 次观看 • 10 个月前 •via X (Twitter)

科学技术教育

Anya Rossi• Live Now

Private livecam show

0 条评论

暂无评论

原始帖子的评论将显示在这里

相关视频

In the next version of ChatWise, it can stream text line by line instead of rendering every character in realtime. This video demonstrates the default behavior first (by character) and then line by line.

In the next version of ChatWise, it can stream text line by line instead of rendering every character in realtime. This video demonstrates the default behavior first (by character) and then line by line.

EGOIST

10,606 次观看 • 1 年前

The Buffon’s needle experiment says that if you drop N needles of length L onto a floor with strips of width 2L, the ratio of N and the number of needles across lines is approximately π [video by Tamás Görbe] [read more:

The Buffon’s needle experiment says that if you drop N needles of length L onto a floor with strips of width 2L, the ratio of N and the number of needles across lines is approximately π [video by Tamás Görbe] [read more:

Massimo

157,962 次观看 • 3 年前

Elon: Optimus Will Learn Tasks by Watching Videos and will "Move the Needle" on U.S. GDP “Optimus is a general-purpose robot that can learn by observing human behavior. You can demonstrate a task, verbally describe it, or even show it a video, and it will be able to do that task. It’s gonna be a very capable robot. Long-term, Optimus will have a very significant impact on the US GDP, it will actually move the needle on US GDP significantly.” Source: Tesla

Elon: Optimus Will Learn Tasks by Watching Videos and will "Move the Needle" on U.S. GDP “Optimus is a general-purpose robot that can learn by observing human behavior. You can demonstrate a task, verbally describe it, or even show it a video, and it will be able to do that task. It’s gonna be a very capable robot. Long-term, Optimus will have a very significant impact on the US GDP, it will actually move the needle on US GDP significantly.” Source: Tesla

Mario Nawfal

196,504 次观看 • 5 个月前

Technicians spent more than a week scanning and stabilizing “Gugusse and the Automaton" – which features, by the way, the first known moving image of what might be called a robot – so that it can now be enjoyed by anyone online!

Technicians spent more than a week scanning and stabilizing “Gugusse and the Automaton" – which features, by the way, the first known moving image of what might be called a robot – so that it can now be enjoyed by anyone online!

Library of Congress

25,932 次观看 • 4 个月前

With a test such as this, success is measured by how much we can learn, which will inform and improve the probability of success in the future as SpaceX rapidly advances development of Starship

With a test such as this, success is measured by how much we can learn, which will inform and improve the probability of success in the future as SpaceX rapidly advances development of Starship

SpaceX

3,140,696 次观看 • 3 年前

📌 Pi Network & GCV – The Global Consensus Value 1. What is GCV? GCV (Global Consensus Value) is the price level that the global Pi Network community agrees to adopt when exchanging goods and services using Pi. This is not a value dictated by exchanges, but rather a community-driven value built on collective trust and demand. 2. How it differs from free market prices Exchange Price: Fluctuates according to supply and demand, often influenced by speculation. GCV: Stable, designed to protect real users’ value and avoid manipulation by “whales.” If the traditional crypto market is like a turbulent ocean, GCV acts as a safe harbor where transactions are grounded in trust and mutual agreement. 3. Why is GCV important for Pi? Protects labor value: Every Pi mined represents time and effort invested by its user. Builds a stable economic foundation: Makes it easier for businesses and individuals to price products and services. Encourages commercial adoption: Stable pricing motivates merchants to accept Pi without fear of volatility. 4. Real-world application of GCV Many Pi communities around the world (including Vietnam) already use GCV in Pi markets and trading groups. For example: 1 Pi = 314.159 VND (a symbolic number linked to the mathematical π). Some groups use 1 Pi = 100 USD for high-value goods. The key point: this price is community-agreed, not exchange-listed. 5. Challenges & Prospects Challenges: If GCV is set too high compared to market prices, it can create a gap and reduce liquidity. Prospects: Widespread adoption of GCV could make it the “reference price” for Pi commerce, building a trust-based, decentralized economy. 💡 Conclusion: Pi Network is taking a different path from most crypto projects – instead of fully relying on volatile market prices, it trusts in value created by the community. GCV serves as the “compass,” guiding Pi away from excessive fluctuations and towards building an early, stable economy. If the community continues to uphold this consensus and use GCV in real-world transactions, Pi could potentially become the first stable digital currency driven by global consensus.

📌 Pi Network & GCV – The Global Consensus Value 1. What is GCV? GCV (Global Consensus Value) is the price level that the global Pi Network community agrees to adopt when exchanging goods and services using Pi. This is not a value dictated by exchanges, but rather a community-driven value built on collective trust and demand. 2. How it differs from free market prices Exchange Price: Fluctuates according to supply and demand, often influenced by speculation. GCV: Stable, designed to protect real users’ value and avoid manipulation by “whales.” If the traditional crypto market is like a turbulent ocean, GCV acts as a safe harbor where transactions are grounded in trust and mutual agreement. 3. Why is GCV important for Pi? Protects labor value: Every Pi mined represents time and effort invested by its user. Builds a stable economic foundation: Makes it easier for businesses and individuals to price products and services. Encourages commercial adoption: Stable pricing motivates merchants to accept Pi without fear of volatility. 4. Real-world application of GCV Many Pi communities around the world (including Vietnam) already use GCV in Pi markets and trading groups. For example: 1 Pi = 314.159 VND (a symbolic number linked to the mathematical π). Some groups use 1 Pi = 100 USD for high-value goods. The key point: this price is community-agreed, not exchange-listed. 5. Challenges & Prospects Challenges: If GCV is set too high compared to market prices, it can create a gap and reduce liquidity. Prospects: Widespread adoption of GCV could make it the “reference price” for Pi commerce, building a trust-based, decentralized economy. 💡 Conclusion: Pi Network is taking a different path from most crypto projects – instead of fully relying on volatile market prices, it trusts in value created by the community. GCV serves as the “compass,” guiding Pi away from excessive fluctuations and towards building an early, stable economy. If the community continues to uphold this consensus and use GCV in real-world transactions, Pi could potentially become the first stable digital currency driven by global consensus.

Learn everything

17,422 次观看 • 11 个月前

Pioneers, the Revolution Is in Our Hands! 🌏 We are living in a historic moment! Pi Network is not just another cryptocurrency – it is a global movement that can forever transform the world’s financial system. But for this to happen, we must act with intelligence, unity, and determination. We are millions of Pioneers across the planet, connected by a single ideal: building a decentralized, fair, and accessible future for all. No government, bank, or financial elite can dictate the value of Pi. We are the force driving this revolution! The True Value of Pi Is in Our Hands! The GCV of $314,159 is not just a number – it is a symbol of our vision, our confidence, and our mission. Pi is worth what we believe and make happen. If we want to see Pi shine, we must act now: Say NO to exchanges that try to manipulate Pi’s value! Withdraw and protect your coins. Refuse to sell your Pi for unfair prices! We determine its value. Use Pi in real transactions! The more we use it, the stronger it becomes. Spread the word, encourage others, make history! The more people believe, the more powerful it gets. Create scarcity! The harder it is to obtain Pi, the more valuable it will be. The World Is Watching – Let’s Show Them Our Strength! The early days of Bitcoin were filled with uncertainty. Many doubted it. Today, it is a global phenomenon! Now, we stand before an even greater moment: the birth of a cryptocurrency that is truly accessible to all. But Pi’s future will not be written by speculators. It will be written by US! The decision is in our hands. We can allow our dream to be manipulated, or we can change history and make Pi a global powerhouse! If every Pioneer acts with faith, strategy, and commitment, the GCV of $314,159 will not be a wish – it will be an undeniable reality! Together, we are unstoppable! The future is now! I am Sérgio Cruz, the Global GCV Ambassador from Portugal 🇵🇹

Pioneers, the Revolution Is in Our Hands! 🌏 We are living in a historic moment! Pi Network is not just another cryptocurrency – it is a global movement that can forever transform the world’s financial system. But for this to happen, we must act with intelligence, unity, and determination. We are millions of Pioneers across the planet, connected by a single ideal: building a decentralized, fair, and accessible future for all. No government, bank, or financial elite can dictate the value of Pi. We are the force driving this revolution! The True Value of Pi Is in Our Hands! The GCV of $314,159 is not just a number – it is a symbol of our vision, our confidence, and our mission. Pi is worth what we believe and make happen. If we want to see Pi shine, we must act now: Say NO to exchanges that try to manipulate Pi’s value! Withdraw and protect your coins. Refuse to sell your Pi for unfair prices! We determine its value. Use Pi in real transactions! The more we use it, the stronger it becomes. Spread the word, encourage others, make history! The more people believe, the more powerful it gets. Create scarcity! The harder it is to obtain Pi, the more valuable it will be. The World Is Watching – Let’s Show Them Our Strength! The early days of Bitcoin were filled with uncertainty. Many doubted it. Today, it is a global phenomenon! Now, we stand before an even greater moment: the birth of a cryptocurrency that is truly accessible to all. But Pi’s future will not be written by speculators. It will be written by US! The decision is in our hands. We can allow our dream to be manipulated, or we can change history and make Pi a global powerhouse! If every Pioneer acts with faith, strategy, and commitment, the GCV of $314,159 will not be a wish – it will be an undeniable reality! Together, we are unstoppable! The future is now! I am Sérgio Cruz, the Global GCV Ambassador from Portugal 🇵🇹

Doris Yin 东方紫莲🪷

17,716 次观看 • 1 年前

Bloat is a disease of ruminant animals, characterized by an excessive volume of gas in the rumen. It's generally treated by not feeding the animal for a few hours, but severe cases require a bloat needle to expel the gas (which can be even lit).

Bloat is a disease of ruminant animals, characterized by an excessive volume of gas in the rumen. It's generally treated by not feeding the animal for a few hours, but severe cases require a bloat needle to expel the gas (which can be even lit).

Massimo

216,555 次观看 • 1 年前

#WATCH | Delhi CM Rekha Gupta says, "Cloud seeding is a necessity for Delhi and is the first experiment of its kind. We want to try it in Delhi to see if it can help us control this very serious environmental problem. So the blessings of the people of Delhi are with the government, and we feel that this will be a successful experiment and in future, we will be able to overcome these environmental problems."

#WATCH | Delhi CM Rekha Gupta says, "Cloud seeding is a necessity for Delhi and is the first experiment of its kind. We want to try it in Delhi to see if it can help us control this very serious environmental problem. So the blessings of the people of Delhi are with the government, and we feel that this will be a successful experiment and in future, we will be able to overcome these environmental problems."

ANI

27,255 次观看 • 8 个月前

A source close to Dianna Russini tells me that they believe Dianna and Vrabel were caught by a PI and that the PI was hired by Dianna's husband and that it isn't about money because the source says Dianna's husband already has plenty of it.

A source close to Dianna Russini tells me that they believe Dianna and Vrabel were caught by a PI and that the PI was hired by Dianna's husband and that it isn't about money because the source says Dianna's husband already has plenty of it.

Jared Stillman

1,215,052 次观看 • 3 个月前

This small experiment demonstrates how plasma can be harvested from the atmosphere. Tartarian buildings were capable of doing this and then transmitting the energy on a city-wide level, utilizing vastly more advanced technology.

This small experiment demonstrates how plasma can be harvested from the atmosphere. Tartarian buildings were capable of doing this and then transmitting the energy on a city-wide level, utilizing vastly more advanced technology.

FLAT OUT TRUTH

176,951 次观看 • 1 年前

A video released by one JNIM militant shows the total amount of money captured it is estimated to be the equivalent of 200,000 Euros so about $230,000, which is an astronomical amount in the region.

A video released by one JNIM militant shows the total amount of money captured it is estimated to be the equivalent of 200,000 Euros so about $230,000, which is an astronomical amount in the region.

Brant

25,062 次观看 • 1 年前

Parents be aware of this! One of the most important ways you can make a difference right now is by urging Congress to co-sponsor the Renewed Hope Act. We can make it easy for you to message your representatives, which moves the needle in this fight! Click the link:

Parents be aware of this! One of the most important ways you can make a difference right now is by urging Congress to co-sponsor the Renewed Hope Act. We can make it easy for you to message your representatives, which moves the needle in this fight! Click the link:

Tim Tebow

45,875 次观看 • 1 年前

Everyone wants to get ahead first—and in that rush, traffic rules are the first thing to be ignored. The hills aren’t just facing a traffic problem anymore, they’re facing a people problem. — Video by Mohit Rawat

Everyone wants to get ahead first—and in that rush, traffic rules are the first thing to be ignored. The hills aren’t just facing a traffic problem anymore, they’re facing a people problem. — Video by Mohit Rawat

The Modern Himachal

20,554 次观看 • 2 个月前

Parents in Portland are outraged after a bill that would ban the distribution of needles and pipes near schools and daycares died in the Oregon Senate Democrats killed the bill, making sure drug needles and pipes can still be handed out near schools and daycares “There's a strong sense of frustration and betrayal among neighbors, business owners, and parents. State Senator Lisa Reynolds shocked the neighbors last week by killing a bill that would've banned harm reduction organizations from giving away free needles and pipes within 2000 feet of schools and daycares”

Parents in Portland are outraged after a bill that would ban the distribution of needles and pipes near schools and daycares died in the Oregon Senate Democrats killed the bill, making sure drug needles and pipes can still be handed out near schools and daycares “There's a strong sense of frustration and betrayal among neighbors, business owners, and parents. State Senator Lisa Reynolds shocked the neighbors last week by killing a bill that would've banned harm reduction organizations from giving away free needles and pipes within 2000 feet of schools and daycares”

Wall Street Apes

68,841 次观看 • 4 个月前

Catholicism teaches that a non-catholic Christian, who left Roman Catholicism and rejects the teachings of their institution, can still be saved. Catholics in CCC 847 have invented another way by which a person can be saved, which denies the sovereignty and power of Almighty God!

Catholicism teaches that a non-catholic Christian, who left Roman Catholicism and rejects the teachings of their institution, can still be saved. Catholics in CCC 847 have invented another way by which a person can be saved, which denies the sovereignty and power of Almighty God!

The Bible In Context

25,215 次观看 • 9 个月前

In Italy, to cross the Strait of Messina between Calabria and Sicily, you can also take the train, which will be loaded onto the ferry and unloaded in Messina where it will resume its journey by rail towards its destination.

In Italy, to cross the Strait of Messina between Calabria and Sicily, you can also take the train, which will be loaded onto the ferry and unloaded in Messina where it will resume its journey by rail towards its destination.

Massimo

45,468 次观看 • 5 个月前

In Italy, to cross the Strait of Messina between Calabria and Sicily, you can also take the train, which will be loaded onto the ferry and unloaded in Messina where it will resume its journey by rail towards its destination.

In Italy, to cross the Strait of Messina between Calabria and Sicily, you can also take the train, which will be loaded onto the ferry and unloaded in Messina where it will resume its journey by rail towards its destination.

Massimo

150,106 次观看 • 1 年前