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Science Notes

Science Notes are prepared by Dr. David Humphreys, emeritus professor of Chemistry at McMaster University in Hamilton, Ontario, Canada.

Retired from active teaching, Dr. Dave now maintains a busy speaking schedule, addressing both secular and Christian audiences on matters of science and Faith.  In Science Notes, he focusses on an interesting aspect of science, setting up a spiritual application written by Ron Hughes.

Features added chronologically with most recent at the top.

El Nino and the World's Weather

My Ears and Toes are Cold

A Close Shave for Earth

20 20 Vision

Ring Around the Yolk

Science At Breakfast Time

Egg Shape is No Accident

Getting it Clean and White

Hard Bread and Soft Cookies

Where Does All That Dust Come From?

Can I Make Myself Laugh?

Acid Stomach

Dogs as Detectives

What Makes You Yawn

Edible Explosives 

Motion Sickness

Timing a Turkey

Sunshine to Go

Winter Hazards

What is That Squeak I Hear?

Detergents Make Water Wetter

Why am I a Lefty?

Memories are Made of These

Insects Are Smart Chemists

Earthquakes

The Restless Earth

That Tastes Delicious

In Search of the Perfect Time Piece

Sporting a Mature Look

Hazards Around the House

Some Chemistry Really Does Stink

Onions are Nothing to Cry Over

Some Weights Don't Measure Up

Clinging in the Kitchen

Don't Stick in the Kitchen

What About Cholesterol

The Explosive Power of Chemicals

Bald and Distinguished

Where Did That Itch Come From?

The Ultimate One Way Ticket

Bacterial Resistance

The Power of a Pill

Why Can't We Live on Grass?

The Rhythm of Life

Tough Love Among the Insects

DNA Profiling

Are You Enjoying the Ride?

The Universal Speed Limit

What Steers the Waves

You Can't Get There From Here

The Disguises of Carbon

Physics on the Golf Course

Nature's Recycling Program

The Variety of Snowflakes

An Age-Old Search

What Is That Smell

Of Clocks and Calendars

What Makes You Unique?

The Wonder of Water