Category Archives: Nature

Nature is filled with threes. Land, sea, and air. People propagate many plants by three chief methods. These methods are: (1) cuttage, (2) grafting, and (3) layering. Forests a catagirized into three major groups: (1) coniferous forests, (2) temperate deciduous forests, and (3) tropical rain forests.

Hurricane season hasn’t peaked yet. Here’s what to expect

By Madison Park, CNN

Updated 11:04 AM EDT, Thu September 07, 2017

• Storm activity tends to peak in September, as water warms and wind shear fades

• Experts anticipated an above-normal 2017 hurricane season in the Atlantic

(CNN) In what feels like a never-ending barrage of storms, this year’s hurricane season just passed the halfway mark — and three hurricanes, including Category 5 Irma, are churning in the Atlantic. Continue reading Hurricane season hasn’t peaked yet. Here’s what to expect

Eclipses

types of solar eclipses
types of solar eclipses

Eclipses, solar and lunar, have fascinated scientists and lay people for centuries. In ancient times, eclipses were seen as phenomena to be feared – many cultures came up with stories and myths to explain the temporary darkening of the Sun or the Moon. In recent centuries, eclipses have been sought after by scientists and astronomers who use the events to study and examine our natural world.

Solar eclipses can only occur during a New Moon when the Moon moves between Earth and the Sun and the 3 celestial bodies form a straight line: Earth–Moon–Sun.

There are between 2 and 5 solar eclipses every year.

There are 3 kinds of solar eclipses: total, partial, and annular. There is also a rare hybrid that is a combination of an annular and a total eclipse.

Continue reading Eclipses

color blindness

Normal Vision
Normal Vision

There are three main kinds of color blindness, based on photopigment defects in the three different kinds of cones that respond to blue, green, and red light. Red-green color blindness is the most common, followed by blue-yellow color blindness. A complete absence of color vision —total color blindness – is rare.

Deuteranomaly
Deuteranomaly

People with ‘faulty’ trichromatic vision will be colour blind to some extent and are known as anomalous trichromats. In people with this condition all of their three cone types are used to perceive light colours but one type of cone perceives light slightly out of alignment, so that there are three different types of effect produced depending upon which cone type is ‘faulty’.

The different anomalous conditions are protanomaly, which is a reduced sensitivity to red light, deuteranomaly which is a reduced sensitivity to green light and is the most common form of colour blindness and tritanomaly which is a reduced sensitivity to blue light and is extremely rare.

Continue reading color blindness

Pigs

Three piglets
Three piglets
The rule of three: The average gestation period for a pig is 3 months, 3 weeks, and 3 days. 

Swine wise. 

Pigs tend to produce large litters in a relatively short period of time. A sow stays pregnant an average of 114 days, although it’s not uncommon for pigs to lose their babies before they are born, or have one or more stillborn piglets. She might not look pregnant until about three weeks before she delivers, but that doesn’t mean there’s a problem with the piglets.
Continue reading Pigs

The Constellations of the Summer Triangle

The Constellations of the Summer Triangle
The Constellations of the Summer Triangle
Stars from three constellations in the northern hemisphere form an imaginary triangle – the Summer Triangle, which is an asterism. The constellations Aquila, Cygnus, and Lyra contain the stars Altair, Deneb, and Vega. Together these stars create a nightly picture of a triangle in space.
Continue reading The Constellations of the Summer Triangle

The Earth’s seasons

The Earth’s seasons are caused by three factors:

Sun track
Sun track

The Earth orbits the Sun once a year in a nearly circular orbit.

The Earth’s axis of rotation (the straight line through the center of the Earth between the north and south poles) is not perpendicular to the plane of the Earth’s orbit. The Earth’s axis is tilted by about 23.4° from the the direction perpendiular to the orbital plane.

The orientation of the Earth’s axis in space remains nearly constant even as the Earth revolves around the Sun. It always points in the general direction of the star Polaris.
Continue reading The Earth’s seasons

Human spine

Human spineVertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx. Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.

Snow Moon, a New Year comet sighting and a lunar eclipse

Lunar eclipse
Lunar eclipse
What are your plans this weekend? For all you space lovers, get ready for an incredibly stellar weekend! From the evening of February 10 through the morning of February 11, 2017 there will be a series of 3 events all in one night: a Snow Moon, a New Year comet sighting and a lunar eclipse! Here’s what you need to know about this incredible event!

1. Snow Moon

The Snow Moon is a term for February’s full moon. It was named this because February is generally the month that has the highest amount of snowfall during the year. This year, the snow moon will rise at 5:33 p.m EST on Friday and set at 7:22 a.m. on Saturday. It shouldn’t be too hard to spot it in the sky.
Continue reading Snow Moon, a New Year comet sighting and a lunar eclipse

Rock cycle

This schematic diagram of the rock cycle shows the relationship between magma and sedimentary, metamorphic, and igneous rock

Rock  cycle
Rock cycle

There are three major types of rock: igneous, sedimentary, and metamorphic. The rock cycle is an important concept in geology which illustrates the relationships between these three types of rock, and magma. 
Continue reading Rock cycle