Murray Bourne
@bourne2learn.bsky.social
📤 490
📥 707
📝 2710
Interests in mathematics, science, politics. Born on a blue day. Is there intelligent life on Earth?
"Never confuse motion with action." [Benjamin Franklin]
about 2 hours ago
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"Reality is that which, when you stop believing in it, doesn't go away." [Philip K. Dick, author]
about 6 hours ago
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"We don't see things as they are, we see them as we are." [Anais Nin]
about 10 hours ago
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"It is health that is real wealth, and not pieces of gold and silver." [Mahatma Gandhi]
about 14 hours ago
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"One can be ignorant without being bigoted, but one can't be bigoted without being ignorant." [Dale Robert Greenley, microbiologist, b. 1946]
about 18 hours ago
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"Don't be yourself. Be someone a little nicer." [Mignon McLaughlin, US journalist and author, 1913-1983]
about 22 hours ago
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"Give me but one firm spot on which to stand, and I will move the earth." [Archimedes]
1 day ago
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Happy Teachers' Day to educators in Spain!
1 day ago
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"One does not see with the eyes; one sees with the brain, which has dozens of different systems for analyzing the input from the eyes." [Oliver Sacks, neurologist, naturalist, historian of science, and author, 1933-2015]
1 day ago
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5 Subjects Not Taught In School (But They Should Be)
https://stemreadings.wordpress.com/2013/06/22/5-subjects-not-taught-in-school-but-they-should-be/
(by Edudemic)
1 day ago
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"Science does correct itself and that's the reason why science is such a glorious thing for our species." [Nigel Calder, science writer, 1931-2014]
2 days ago
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"Violence finds its only refuge in falsehood, falsehood its only support in violence. Any man who has once acclaimed violence as his method must inexorably choose falsehood as his principle." [Aleksandr Solzhenitsyn, novelist, Nobel laureate, 1918-2008]
2 days ago
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Learn how Binomial Theorem works using these interactives:
https://www.intmath.com/series-binomial-theorem/4-binomial-theorem.php
2 days ago
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"It must be pointed out time and again that the exclusion of a large part of the colored population from active civil rights by the common practices is a slap in the face of the Constitution of the nation." [Einstein, in a 1946 address]
2 days ago
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"Act so as to elicit the best in others and thereby in yourself (the supreme ethical rule)." [Felix Adler]
2 days ago
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"Eighty percent of success is showing up." [Woody Allen]
3 days ago
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Indians are 10 times more likely to get heart disease than Chinese or Malays (in Singapore). Mutton is a factor.
3 days ago
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"You don't have to burn books to destroy a culture. Just get people to stop reading them." [Ray Bradbury]
3 days ago
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"There is separation of colored people from white people in the United States. That separation is not a disease of colored people. It is a disease of white people. I do not intend to be quiet about it." [Einstein, Lincoln University commencement speech, 1946]
3 days ago
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Happy Teachers' Day to educators in Indonesia!
3 days ago
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"If I'm going to push my students toward their dream and their purpose in life, I've got to get to know who they are." [Linda Cliott-Wayman, former principal with reputation for turning around struggling schools]
3 days ago
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"A single death is a tragedy. A million deaths is a statistic." [Joseph Stalin]
4 days ago
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"Failure is another steppingstone to greatness." [Oprah Winfrey]
4 days ago
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"Everything you add to the truth subtracts from the truth." [Alexander Solzhenitsyn, novelist]
4 days ago
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Current world population (live)
https://www.intmath.com/exponential-logarithmic-functions/world-population-live.php
Also see what growth was like in times past and future.
4 days ago
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Happy Teachers' Day to educators in Turkey!
4 days ago
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How to find velocity and acceleration as a car goes around a curve? Curvilinear motion, application of calculus:
http://intmath.com/curvi
4 days ago
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"I am a firm believer in luck, I find the harder I work the more of it I have." [Thomas Jefferson + others]
5 days ago
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In life lots of people know what to do, but few people actually do what they know. Knowing is not enough! You must take action. [T Robbins]
5 days ago
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"People won't care about how much you know until they know how much you care!" [Anon]
5 days ago
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"Mathematics is the science of what is clear by itself." [Carl Jacobi]
5 days ago
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"Men never do evil so completely and cheerfully as when they do it from religious conviction." [Blaise Pascal, French mathematician, physicist, inventor, philosopher, writer and Catholic theologian, 1623-1662]
5 days ago
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"The difference between a successful person and others is not a lack of strength nor knowledge, but rather a lack of will." [V. Lombardi]
5 days ago
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"We may regard the present state of the universe as the effect of its past and the cause of its future. [If one] knows all forces that set nature in motion, and all positions of all items, ... then the future just like the past would be present before one's eyes." [Laplace]
6 days ago
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A hypotenuse is the longest side of a right triangle.
6 days ago
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"Do the difficult things while they are easy and do the great things while they are small." [Lao Tzu]
6 days ago
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"A couple of months in the laboratory can save a couple of hours in the library." [F. H. Westheimer]
6 days ago
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Happy Teachers' Day to educators in Costa Rica!
6 days ago
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"What would life be without arithmetic, but a scene of horrors." [Sydney Smith, English wit, writer, and Anglican cleric, 1771 – 1845]
6 days ago
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"If I feel unhappy, I do mathematics to become happy. If I am happy, I do mathematics to keep happy." [Alfred Renyi]
7 days ago
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"Do unto those downstream as you would have those upstream do unto you." [Wendell Berry]
7 days ago
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Online computer algebra system:
https://calcme.com/a
by WIRIS. Also does 2D and 3D graphs, and you can save to PDF too.
7 days ago
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reposted by
Murray Bourne
Professor Euan Ritchie
7 days ago
This is utterly outrageous by the Group of Eight unis, and deeply insulting and undermining for environment and climate experts trying their hardest to achieve a more sustainable future for society. Shameful stuff.
add a skeleton here at some point
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"God is a circle whose center is everywhere and circumference nowhere." [Voltaire, philosopher, born this day 21 Nov 1694-1778]
7 days ago
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Happy Teachers' Day to educators in Somalia!
7 days ago
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A story to stimulate math:
https://www.intmath.com/series-binomial-theorem/series-introduction.php
7 days ago
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"Whoever despises the high wisdom of mathematics nourishes himself on delusion." [Leonardo da Vinci]
8 days ago
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"The best time to plant a tree was 20 years ago. The second best time is now." [Chinese proverb]
8 days ago
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"No knowledge can be certain if it is not based upon mathematics or upon some other knowledge which is itself based upon math." [da Vinci]
8 days ago
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Happy birthday to Edwin Hubble (b 20 Nov 1889, died 1953). Discovered galaxies beyond Milky Way and support for Big Bang.
8 days ago
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