book020

menu_image
science history arts ethics mathematics essay and presentation teachers logics sense perception emotion language


What is the Mpemba Effect?


 

A pathway
In this edition I would like to explain why hot water freezes faster than cold water, when put into the freezer. It is a very counter-intuitive observation, it’s a paradox. This is called the Mpemba Effect. The effect is named according to Tanzanian high-school student Erasto B. Mpemba who re-discovered the effect while making ice-cream, back in 1963. The Mpemba Effect is a nice example how the change of one variable, the temperature, can have unexpected side effects. Most people assume that the difference between a hot glass of water and a cold glass of water is only the temperature. But this is not the case. Just by heating the water we are introducing a range of other variables that have an unexpected effect on the outcome.

In this edition of TOK-Talk I would like to explain why hot water freezes faster than cold water, when put into the freezer. How is this possible? Listen to find out! Continue reading »

Tags: , , , , , , , , ,


General Info

Areas of Knowledge

Ways of Knowing

Miscellaneous

Assessment


RSS Feeds

Popular Tags

analytic | anatomy | anthropology | Areas of Knowledge | Arts | assumptions | axioms | beauty | belief | bias | categorical imperative | certainty | Columbus | communication | consequentialism | creatvity | culture | deontology | determinism | dignity | dilemmas | emotions | enlightenment | essay | Ethics | facts | falsification | frank | General TOK | graphs | Great Minds | guide | History | human | Internal Assessment | jokes | Kant | knowledge | knowledge issues | Language | life | linking | Logics | marking | math | Mathematics | morality | Mpemba | Ockham | opinions | paradigms | paradox | Perception | physicalism | Plato | poetry | Popper | positivism | pragmatism | predicatbility | Presentation | proofs | puzzle | reason | Reflections | relativism | religion | schlick | Science | sense perception | speeches | statistics | syllabus | ted | theorems | theories | tok | TOK Essay | Truth | utilitarianism | variables | Videos | vidoes | vienna circle | Ways of Knowing
An investment in knowledge always pays the best interest.

- Benjamin Franklin -
Copy Guarded by IamShekhar's WP-CopyGuard.