Helianthus or sunflower is a genus of plants comprising about 70 species. Except for three species in South America, all Helianthus species are native to North America. The common name, “sunflower” typically refers to the popular annual species Helianthus annuus, or the common sunflower, whose round flower heads in combination with the ligules look like the sun. This and other species, notably the Jerusalem artichoke (H. tuberosus), are cultivated in temperate regions and some tropical regions as food crops for humans, cattle, and poultry, and as ornamental plants. Perennial sunflower species are not as popular for gardens due to their tendency to spread rapidly and become invasive. Sunflowers are usually tall annual or perennial plants that in some species can grow to a height of 300 cm (120 in) or more. They bear one or more wide, terminal capitula (flower heads), with bright yellow ray florets at the outside and yellow or maroon (also known as a brown/red) disc florets inside. Several ornamental cultivars of H. annuus have red-coloured ray florets; all of them stem from a single original mutant. During growth, sunflowers tilt during the day to face the sun but stop once they begin blooming. This tracking of the sun in young sunflower heads is called heliotropism. By the time they are mature, sunflowers generally face east. Credit: Wikipedia.
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- Romans 8:38-39 Monday, 18 February, 2019“For I am convinced that neither death nor life, neither angels nor demons, neither the present nor the future, nor any powers, neither height nor depth, nor anything else in all creation, will be able to separate us from the love of God that is in Christ Jesus our Lord.”
Hot Springs National Park
QUOTE OF THE WEEK: One day, in retrospect, the years of struggle will strike you as the most beautiful. Sigmund Freud (1856 – 1939).
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THE HUMAN BRAIN: It’s important to understand that the brain is not a muscle. The brain is not made up of myocytes, the cells muscles are made of, but rather by millions of neurons that are interconnected by axons and dendrites. They regulate each and every one of our brain’s and body’s functions. From breathing, or eating or running, to the ability to reason, to fall in love, or to argue, everything passes through our brain’s control.
- Watch - Lassa Fever in Nigeria Thursday, 7 February, 2019Nigerian health officials have declared an outbreak of Lassa fever in Nigeria. Travelers to Nigeria should avoid contact with rats, especially rat urine and feces, and keep their accommodations or campsites clean.
- Watch - Andes Virus (Hantavirus) in Argentina Monday, 28 January, 2019There is an outbreak of Andes virus in Argentina, specifically in Chubut Province of Patagonia. Travelers to Argentina should avoid contact with rodents and their droppings (urine and feces), and avoid close contact with anyone who may be sick.
ASTRONOMY PICTURE OF THE DAY: NGC 7822. Credit & Copyright: Neil Fleming. At the edge of a giant molecular cloud toward the northern constellation Cepheus, the glowing star forming region lies about 3,000 light-years away. The image maps emission from atomic oxygen, hydrogen, and sulfur into blue, green, and red hues. The atomic emission is powered by the energetic radiation from the hot stars, whose powerful winds and radiation also sculpt and erode the denser pillar shapes. Stars could still be forming inside the pillars by gravitational collapse, but as the pillars are eroded away, any forming stars will ultimately be cut-off from their reservoir of star stuff. This field spans around 60 light-years.
- Florida Students to Speak with NASA Astronaut Aboard International Space Station Friday, 15 February, 2019University and high school students from Florida will have an opportunity to talk with a NASA astronaut on the International Space Station next week.
- NASA Selects New Mission to Explore Origins of Universe Wednesday, 13 February, 2019NASA has selected a new space mission that will help astronomers understand both how our universe evolved and how common are the ingredients for life in our galaxy’s planetary systems.
- Valentine’s Day, animal edition: 6 weird ways animals get it on Tuesday, 12 February, 2019From kinky spider bondage to death-inducing foreplay, Human Nature dives into the fascinatingly depraved world of animal mating rituals.Olivia DeSmit
- In case you missed it: 3 big stories from our world Monday, 11 February, 2019Human Nature shares three stories from the past week that you should know about.Olivia DeSmit
IMAGO DEI: The Ndebele tribe or amaNdebele, one of the smaller ones of the Nguni speaking tribes that migrated to South Africa, were the first Nguni speaking people to move into the interior of the country instead of the coastal areas. The Nguni tribes represent nearly two thirds of South Africa’s Black population and can be divided into four distinct groups; the Central Nguni (the Zulu-speaking peoples), the Southern Nguni (the Xhosa-speaking peoples), the Swazi people from Swaziland and adjacent areas and the Ndebele people of the Northern Province and Mpumalanga.
- Yemen - Level 4: Do Not Travel Thursday, 14 February, 2019Do not travel to Yemen due to terrorism, civil unrest, health risks, and armed conflict. Terrorist groups continue to plot and conduct attacks in Yemen. Terrorists may attack with little or no warning, targeting public sites, transportation hubs, markets/shopping malls, and local government facilities. Additionally, there is a continuing threat of kidnapping/detention by terrorists, criminal elements, […]
- Burkina Faso - Level 3: Reconsider Travel Thursday, 14 February, 2019Reconsider travel to Burkina Faso due to terrorism. Some areas have increased risk. Read the entire Travel Advisory. Do not travel to: The Sahel Region due to crime and terrorism. The East Region due to crime and terrorism. The Provinces of Koulpelogo, Loroum, Yatenga, Sourou, Kossi, Banwa, Kenedougou, or within 50km of the Mali border […]
THE FLAG OF PAPUA NEW GUINEA: The flag of Papua New Guinea was adopted on 1 July 1971. In the hoist, it depicts the Southern Cross; in the fly, a raggiana bird-of-paradise is silhouetted. Red and black have long been traditional colours of many Papua New Guinean tribes. The Southern Cross shows that it is a country in the Southern Hemisphere and can be seen in Papua New Guinea.
- Jordan Sunday, 17 February, 2019Summary - Due to an ongoing incident in in the Anjara and Ajlun areas we urge caution in visiting this part of Jordan. Anyone already in this area should follow the advice of the local authoritiesGOV.UK
- Nigeria Saturday, 16 February, 2019Summary - Presidential and National Assembly elections, due to take place in Nigeria on 16 February 2019, have been delayed a week until 23 February. The Gubernatorial and State House of Assembly elections, due on 2 March, have also been delayed by a week until 9 March. You should continue to avoid rallies, public gatherings […]GOV.UK
WORK OF ART: Studies of the Foetus in the Womb are two-coloured annotated sketches by Leonardo da Vinci made in around 1511. Da Vinci studied human embryology with the help of anatomist Marcantonio della Torre and saw the foetus within a cadaver. The studies were initially bequeathed to Francesco Melzi. In c. 1582–90 they were bought from his heirs by Pompeo Leoni, and by 1630 they belonged to Thomas Howard, 2nd Earl of Arundel. Since 1690 the studies have been housed in the Royal Collection, United Kingdom.
- change your tuneIf you change your tune, you change your opinion about something or your attitude towards someone.