Category Archives: global interest

What causes leaves to change colors?

It’s all about Chemistry:

Not all leaves turn vivid colors.  Only a few species of deciduous trees produce the beautiful colors this time of year.  In Minnesota, most notably, we have aspen, maple and oak.  Soil moisture, precipitation, temperature and light all contribute to fall color.  Light, the lack of it, is the main agent.

As autumn days grow shorter, thus less light, chemical changes in deciduous plants cause a “corky” wall to form in between the twig and leaf stalk.  This “corky” wall or abscission layer eventually causes the leaf to drop.

The chemical change seals off the vessels that supply a leaf with nutrients and water.  It also blocks exit vessels, thus trapping simple sugars in the leaves.   Reduced light, lack of nutrients and not water add up to the chlorophyll (which makes the green color) to die.

Once the green is gone, other pigments take over.  Carotene (yellow) and anthocyanin (red) exist in the leaf all summer but are overpowered by chlorophyll.  The brown in autumn leaves is a result of tannin.

Sugar trapped in the abscission layer is largely responsible for the vivid colors.  Sunlight acting on the trapped sugar also helps to manufacture anthocyanin (red).  This is why colors on bright fall days are crisper and duller or more pastel during times of rain.

A wet growing season and a dry autumn filled with sunny days combined with cold frost free nights helps produce the most vibrant colors of fall.

 

Source: Farmer’s Almanac 2020

 

This is a helpful graphic to sort out all the information above:

11b24048191f0ac67e4f4f42e17f1cdd

 

 

Posted in Fun Facts /General Information /global interest /Uncategorized /

Who was Leif Erikson?

October 9th marks Leif Erikson Day

xKXNvcxB_400x400

Leif Erikson  is generally believed to be the first European to reach the North American continent.  He was son of Erik the Red, founder of the first European settlement on what is now called Greenland.  Around 1000 A.D., Erikson sailed to Norway where he was converted to Christianity by King Olaf I.  Losing his course returning to Greenland, Erikson landed on the North American Continent.  Due to the abundance of wild grapes that were growing there, he called it Vinland.  He spent time on Vinland and returned to Greenland.  He never made a return trip to North America.

The location of Vinland in North America has been debated over the centuries.  In the early 1960’s excavations at L’Anse aux Meadows, on the northernmost tip of Newfoundland, uncovered evidence of what is believed to be the base camp of the 11th century Viking exploration.

Upon Erik the Red’s death,  Leif took over the Greenland settlement.  He had two sons, Thorgils and Thorkel.  Thorkel became chief after his father’s death in 1025.

In the late 19th century many Nordic Americans celebrated Leif Erikson as the first European explorer of the New world.  In 1964, President Johnson declared October 9th as “Leif Erikson Day”.

DID YOU KNOW?

Down at the Minnesota State Capitol building in St. Paul, there is a statue of Leif Erikson.

MN LEif Erikson

Source: History.com

 

Posted in global interest /History /

Happy Fourth of July!!

To our Friends and Family -

We wish each of you a very Happy Fourth of July! Since 1776 America has celebrated Independence Day.  We celebrate and commemorate the adoption the the Declaration of Independence.

At Copperfield Hill, one way we show our spirit is by lining our property with American Flags.  We hope you enjoy the weekend celebration of the 4th with  friends and family.  Social Distancing of course!

 

You can learn more about the Fourth of July by visiting the Library of Congress website: www.loc.gov

IMG_3536

Posted in Fourth of July /global interest /History /Human Interest /Uncategorized /

Reflections from Pastor Jan Hartsook

Dear Residents, Families and Friends:

These are trying times and I wanted to share some helpful topics along with Bible passages to contemplate during this time of uncertainty. One only has to think of the beautiful image of God holding the world in his arms. That’s a powerful image to hold on to in the midst of the pandemic–and at all times.     Peace, Pastor Jan

Love: Isaiah 43:4, God says to each of us, “You are precious in my sight, and honored and I love you.” This is a beautiful passage in which God assures us that we are all God’s beloved children. Throughout the Bible, God promises to be with us in both the good and difficult time in our lives. In the midst of the corona virus pandemic, God is with us.

Faith/Trust: Psalm 27:1, “The Lord is my light and my salvation; whom shall I fear? The Lord is the stronghold of my life; of whom shall I be afraid.” God never promised that life would be easy, free from heartache and broken dreams. But God did promise to walk with us and to hold us close. We are assured that we are never alone; rather, God’s steadfast love will always surround us.

Hope: Romans 15:13, “May the God of hope fill you with all joy and peace in believing, so that you may abound in hope by the power of the Holy Spirit.” Hope is based on God’s promise to be with us always and forever. That hope brings joy: that is, a feeling deep inside of us of warmth, a sense of peace and well being in which to live our daily lives.

Courage: Isaiah 41:10, “Do not fear, for I am with you, do not be afraid, for I am your God.” These are words assuring us that God will be with us in those times which we need courage. God’s strength and guidance helps us to reach out to help when needed or stay strong in the midst of the storms that can rage around us. Pray for courage, knowing God is listening.

Worship Services, Weekly Bible Study and Daily Devotions—I will continue to prepare these weekly hand-outs that you may use on your own. They will be delivered to your apartment.

Remember, God is always with us no matter what may be happening around us. God’s love, comfort, strength, encouragement, guidance and hope never change!

~Pastor Jan

Copperfield Hill Pastor

Posted in global interest /Human Interest /Spiritual Well Being /

Happy New Year!

Happy New Year from your friends at Copperfield Hill.  We wish you good health and prosperity in 2020.

It’s a new year and a new decade.  Did you know that the United Nations (UN) designates specific years to mark particular events and topics to bring a greater awareness to a subject or organization?

2020 has been declared by the United Nations as the International Year of Plant Health*. The UN will continue to recognize and promote healthy ecosystems as key to sustainable development.

The American Phytopathological Society (APS) states the overall objective is to raise awareness of the importance of, and the impacts of plant health in regards to global issues, such as hunger, poverty, threats to environment and economic development. Healthy plants are vital to the overall health of an environment and biodiversity. Healthy plants are also key to sustaining a global food supply.

*More information at: UN.org and apsnet.org

Posted in global interest /Human Interest /