Murray Bourne
@bourne2learn.bsky.social
Interests in mathematics, science, politics. Born on a blue day. Is there intelligent life on Earth?
"We must use time wisely and forever realize that the time is always ripe to do right." [Nelson Mandela]
November 11, 2025 at 4:15 PM
"We must use time wisely and forever realize that the time is always ripe to do right." [Nelson Mandela]
3-D display of Earth pollution: AirVisual Earth https://www.iqair.com/earth Search your city: https://www.iqair.com/
November 11, 2025 at 12:15 PM
3-D display of Earth pollution: AirVisual Earth https://www.iqair.com/earth Search your city: https://www.iqair.com/
"A good head and a good heart are always a formidable combination." [Nelson Mandela]
November 11, 2025 at 8:15 AM
"A good head and a good heart are always a formidable combination." [Nelson Mandela]
"A timid question will always receive a confident answer." [Charles John Darling, lawyer, judge, and politician,1849-1936]
November 11, 2025 at 4:15 AM
"A timid question will always receive a confident answer." [Charles John Darling, lawyer, judge, and politician,1849-1936]
Today is 11/11. At 11:00 AM, many countries celebrate Remembrance Day, the end of World War I (the war to end all wars, supposedly).
November 11, 2025 at 12:15 AM
Today is 11/11. At 11:00 AM, many countries celebrate Remembrance Day, the end of World War I (the war to end all wars, supposedly).
"Change is not a threat, it’s an opportunity. Survival is not the goal, transformative success is. " [Seth Godin]
November 10, 2025 at 8:15 PM
"Change is not a threat, it’s an opportunity. Survival is not the goal, transformative success is. " [Seth Godin]
"Science is organized knowledge. Wisdom is organized life."
[Immanuel Kant, German Enlightenment philosopher, 1724-1804]
[Immanuel Kant, German Enlightenment philosopher, 1724-1804]
November 10, 2025 at 4:15 PM
"Science is organized knowledge. Wisdom is organized life."
[Immanuel Kant, German Enlightenment philosopher, 1724-1804]
[Immanuel Kant, German Enlightenment philosopher, 1724-1804]
"What's done to children, they will do to society." [Karl A. Menninger, US psychiatrist, 1893-1990]
November 10, 2025 at 12:15 PM
"What's done to children, they will do to society." [Karl A. Menninger, US psychiatrist, 1893-1990]
"There is no passion to be found ... in settling for a life that is less than the one you are capable of living." [Nelson Mandela]
November 10, 2025 at 8:15 AM
"There is no passion to be found ... in settling for a life that is less than the one you are capable of living." [Nelson Mandela]
"Learning is weightless, a treasure you can always carry easily" [Chinese proverb]
November 10, 2025 at 4:15 AM
"Learning is weightless, a treasure you can always carry easily" [Chinese proverb]
"Research is what I'm doing when I don't know what I'm doing."
[Wernher von Braun, German-US aerospace engineer, 1912-1977]
[Wernher von Braun, German-US aerospace engineer, 1912-1977]
November 10, 2025 at 12:15 AM
"Research is what I'm doing when I don't know what I'm doing."
[Wernher von Braun, German-US aerospace engineer, 1912-1977]
[Wernher von Braun, German-US aerospace engineer, 1912-1977]
"An investment in knowledge always pays the best interest." [Benjamin Franklin]
November 9, 2025 at 8:15 PM
"An investment in knowledge always pays the best interest." [Benjamin Franklin]
The link between coal burning and climate change was suggested over 100 years ago. We still have fossils today who deny it. https://www.theguardian.com/books/2020/jun/28/beyond-google-my-afternoon-trawling-trove-for-the-first-mentions-of-climate-change
November 9, 2025 at 4:15 PM
The link between coal burning and climate change was suggested over 100 years ago. We still have fossils today who deny it. https://www.theguardian.com/books/2020/jun/28/beyond-google-my-afternoon-trawling-trove-for-the-first-mentions-of-climate-change
"Science progresses best when observations force us to alter our preconceptions."
[Vera Rubin, US astronomer and physicist, 1928-2016]
[Vera Rubin, US astronomer and physicist, 1928-2016]
November 9, 2025 at 12:15 PM
"Science progresses best when observations force us to alter our preconceptions."
[Vera Rubin, US astronomer and physicist, 1928-2016]
[Vera Rubin, US astronomer and physicist, 1928-2016]
"Work saves us from three great evils: boredom, vice, and need." [Voltaire, writer, historian, and philosopher of the Enlightenment]
November 9, 2025 at 8:15 AM
"Work saves us from three great evils: boredom, vice, and need." [Voltaire, writer, historian, and philosopher of the Enlightenment]
"You can never truly enjoy success if you have never had to struggle." [Shelby Gogulski]
November 9, 2025 at 4:15 AM
"You can never truly enjoy success if you have never had to struggle." [Shelby Gogulski]
Happy birthday Hedy Lamarr, Hollywood actress and inventor of spread-spectrum and frequency hopping techniques. [b. 9 Nov 1914, d. 2000]
November 9, 2025 at 12:15 AM
Happy birthday Hedy Lamarr, Hollywood actress and inventor of spread-spectrum and frequency hopping techniques. [b. 9 Nov 1914, d. 2000]
"Difficulties break some men but make others." [Nelson Mandela]
November 8, 2025 at 8:15 PM
"Difficulties break some men but make others." [Nelson Mandela]
"Resentment is like drinking poison and then hoping it will kill your enemies." [Nelson Mandela]
November 8, 2025 at 4:15 PM
"Resentment is like drinking poison and then hoping it will kill your enemies." [Nelson Mandela]
"It always seems impossible until it's done." [Nelson Mandela]
November 8, 2025 at 12:15 PM
"It always seems impossible until it's done." [Nelson Mandela]
"Do not judge me by my successes, judge me by how many times I fell down and got back up again." [Nelson Mandela]
November 8, 2025 at 8:15 AM
"Do not judge me by my successes, judge me by how many times I fell down and got back up again." [Nelson Mandela]
"Education is the most powerful weapon which you can use to change the world." [Nelson Mandela]
November 8, 2025 at 4:15 AM
"Education is the most powerful weapon which you can use to change the world." [Nelson Mandela]
Edmond Halley, British astronomer and mathematician, born 8 Nov 1656. Studied comets, annuities table, and underwater diving bells.
November 8, 2025 at 12:15 AM
Edmond Halley, British astronomer and mathematician, born 8 Nov 1656. Studied comets, annuities table, and underwater diving bells.
Study shows students who gesture while learning algebra are more likely to remember. https://files.eric.ed.gov/fulltext/EJ1118523.pdf (sorry, PDF)
November 7, 2025 at 8:15 PM
Study shows students who gesture while learning algebra are more likely to remember. https://files.eric.ed.gov/fulltext/EJ1118523.pdf (sorry, PDF)
"Water is the driving force of all nature." [Leonardo da Vinci]
November 7, 2025 at 12:15 PM
"Water is the driving force of all nature." [Leonardo da Vinci]