×

Warning

JUser: :_load: Unable to load user with ID: 1543
Wednesday, 24 January 2007 22:21

January 25: Today in Science History

By
Science events that happened on January 25: from Lagrange and Boyle, to heart transplants, fluoridation, and the telephone.

On January 25, 1736, Italian mathematician and astronomer Joseph-Louis Lagrange (1736-1813) was born. He was instrumental in developing number theory and contributed greatly to the fields of classical and celestial mechanics. Lagrange is often considered the greatest mathematician of the eighteenth century, primarily due to his work on wave progagation and the maxima and minima of curves. In 1788, he wrote the textbook “Mécanique Analytique” (“Analytic Mechanics”), which is considered the basis for all further studies within the field. Joseph-Louis Lagrange’s biography is presented at: https://www.andrews.edu/~calkins/math/biograph/biolagra.htm.

Irish chemist, physicist, inventor, and natural philosopher Robert Boyle (1627-1691) was born on January 25, 1627. He is famous for his early work on gases, having Boyle’s Law named after him. (Boyle’s law states that with constant temperature the product of the pressure (P) and volume (V) of a fixed quantity of an ideal gas is constant (k): PV = k.) Boyle is considered to have been the first modern chemist. His writing “The Sceptical Chymist”, laid the foundation for the field of chemistry. A biography of Robert Boyle appears at: https://www.bbk.ac.uk/boyle/biog.html.

On January 25, 1974, South African cardiac surgeon Christian Barnard (1922-2001) transplanted a human heart without removing the original heart. A BBC news story about Christian Barnard appears at: https://news.bbc.co.uk/1/hi/health/1470356.stm.

On January 25, 1945, Grand Rapids, Michigan became the first U.S. city to add fluoride to its drinking water, introducing fluoridation into U.S. society. More information about the history of fluoridation occurs at: https://www.nidcr.nih.gov/HealthInformation/DiseasesAndConditions/Fluoride/StoryFluoride.htm.

On January 25, 1915, Alexander Graham Bell, from New York City, Thomas A. Watson, in San Francisco, and Theodore N. Vail (the first president of the American Telephone & Telegraph Company [AT&T]), from Jekyll Island, Georgia, opened the first transcontinental telephone line for commercial service across the United States. More information on the event is found at: https://www.glynncounty.com/cgi-bin/oaktree.pl?dbf=data.txt&ID=00014547.


Subscribe to Newsletter here

NEW OFFER - ITWIRE LAUNCHES PROMOTIONAL NEWS & CONTENT

Recently iTWire remodelled and relaunched how we approach "Sponsored Content" and this is now referred to as "Promotional News and Content”.

This repositioning of our promotional stories has come about due to customer focus groups and their feedback from PR firms, bloggers and advertising firms.

Your Promotional story will be prominently displayed on the Home Page.

We will also provide you with a second post that will be displayed on every page on the right hand side for at least 6 weeks and also it will appear for 4 weeks in the newsletter every day that goes to 75,000 readers twice daily.

POST YOUR NEWS ON ITWIRE NOW!

PROMOTE YOUR WEBINAR ON ITWIRE

It's all about Webinars.

These days our customers Advertising & Marketing campaigns are mainly focussed on Webinars.

If you wish to promote a Webinar we recommend at least a 2 week campaign prior to your event.

The iTWire campaign will include extensive adverts on our News Site itwire.com and prominent Newsletter promotion https://www.itwire.com/itwire-update.html and Promotional News & Editorial.

For covid-19 assistance we have extended terms, a Webinar Business Booster Pack and other supportive programs.

We look forward to discussing your campaign goals with you. Please click the button below.

MORE INFO HERE!

BACK TO HOME PAGE

BACK TO HOME PAGE

ZOOM WEBINARS & ONLINE EVENTS

GUEST ARTICLES

VENDOR NEWS

Guest Opinion

Guest Interviews

Guest Research & Case Studies

Channel News

Comments