Harold Jeffreys

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/harold-jeffreys

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. When was Harold Jeffreys born?April 22, 1891, Oxford, England
2. When did Harold Jeffreys die?March 18, 1989, Cambridge, England
3. What is the career?Geophysicist, mathematician, statistician; Fellow of the Royal Society
4. What is the key publication?'Theory of Probability' (1939), which revitalized objective Bayesian probability
5. Who was Harold Jeffreys?Harold Jeffreys was a British scientist who lived from 1891 to 1989 and worked in geophysics, mathematics, and statistics.
6. What is the book 'Theory of Probability' about?The book explains how probability can measure logical belief and helps scientists update their ideas when new data comes in.

Geophysics: The physics of the Earth, including its structure, composition, and processes, studied through observation and mathematical modeling.
Probability Theory: A branch of mathematics concerned with the analysis of random phenomena, quantifying uncertainty and likelihood.
Objective Bayesianism: An interpretation of probability that treats it as a logical measure of belief, updated based on evidence, aiming for objectivity.
Seismic Waves: Waves of energy that travel through the Earth's layers, generated by earthquakes or other seismic disturbances.