Water, Tides and the Moon

I am sorry to bring you yesterday’s news, but it’s possible that you weren’t aware of the event, so there’s that. This is what it was – there was a total lunar eclipse yesterday. There it was …. and … it’s gone.

Apparently, it was a Blood Moon (which should please all the vampire / werewolf lore people – awooooo!) but interestingly – the full eclipse was only visible from locations such as:

Detroit, Michigan, U.S.A.

Tokyo, Japan

Guatemala, Guatemala

Beijing, Beijing Municipality, China

Hanoi, Vietnam

Mexico City, Federal District, Mexico

and

Montreal, Quebec, Canada

Seems those in Engalend didn’t get much a look-in on this one, but hey.

Anyhow, now you know. In a recent blog, I spoke about the demise of the planet Pluto to just a body, but this blog is not really about the planetary aspect of the moon, but more about what it is that makes the Moon affect the tides.

How, what and why – *The alternating pattern of rising and falling sea level with respect to land is what we know as the tides. What causes this ‘motion of the ocean’? In one word, gravity. Specifically, the gravitational forces of the Sun and Moon.

The key to understanding how the tides work is understanding the relationship between the motion of our planet and the Moon and Sun. As the Earth spins on its own axis, ocean water is kept at equal levels around the planet by the Earth’s gravity pulling inward and centrifugal force pushing outward.

However, the Moon’s gravitational forces are strong enough to disrupt this balance by accelerating the water towards the Moon. This causes the water to ‘bulge’.  As the Moon orbits our planet and as the Earth rotates, the bulge also moves. The areas of the Earth where the bulging occurs experience high tide, and the other areas are subject to a low tide.

Water on the opposite side of Earth facing away from the Moon also bulges outward (high tide), but for a different and interesting reason: in reality, the Moon and the Earth revolve together around a common gravitational centre between them, or centre of mass. Here’s a rough but helpful analogy: picture yourself swinging a heavy object attached to a rope around your body as you rotate. You have to lean back to compensate, which puts the centre of mass between you and the object. With the Earth-Moon system, gravity is like a rope that pulls or keeps the two bodies together, and centrifugal force is what keeps them apart. Because the centrifugal force is greater than the Moon’s gravitational pull, ocean water on the opposite side of the Earth bulges outward.

So there you have it – well, the basics at least.

*extracts from an article at Moon Connection

 

What qualifies as a Waterfall?

There I was, playing with the water cooler bottle (I love making the water gloomph, Mrs Furtheringstoke not so much) when it suddenly occurred to me – what makes a water fall a waterfall? Is it a height, volume, water per second thing or what?

Inspired, I made the water gloomph one more time before racing back to my station and hopping on web. The nitty gritty:

Height

The primary qualifier is the height of a waterfall as it is the most visually indicative of a change in elevation. Depending on the average discharge of the stream along which the waterfall occurs, there are two different qualifiers for the height of a waterfall:

  • Perennial Streams – Waterfalls occurring along streams which maintain a discernible volume of water throughout the year must drop at least 15 vertical feet (4m) to qualify for inclusion.
  • Intermittent Streams – Waterfalls occurring along streams which run dry for part of the year must drop at least 50 vertical feet (15m) to qualify for inclusion.

Additionally, the drop of the waterfall in question must conform to the definition of Waterfall:

“A well-defined change in slope, velocity, aeration or agitation of the water within a stream over an immediately abrupt distance, where an identifiable loss in elevation may be perceived due to non-uniformity of the underlying geologic structures.”

… and as such must have an easily identifiable top and bottom, and must fall as a result of contacting or being interrupted by solid bedrock rather than talus, boulders or rock lying on top of the earth.

Seasonality

Should a waterfall along an intermittent stream qualify based on height, it needs to meet a secondary requirement of flowing consistently for at least one month out of the year. This stipulation is meant to prevent rainstorm fuelled waterfalls (such as those seen throughout Arizona’s Grand Canyon) from being included when they meet the 50-foot requirement.

After all this fact, being me, I got totally distracted by all the pretty waterfalls. These are 5 of the most beautiful around the world:

Nohkalikai Falls is found in India. Water falls down for 1100 ft. (335 m). Although the feeding stream is only 1.5 miles (2 km) long, Nohkalikai is still very impressive. A pool is formed below the fall, in which the water receives its green colour.

Sutherland Falls are located in Fiordland, New Zealand. With its 1902 ft. (580 m) plunge it is one of the tallest waterfalls in the world. It falls in three cascades that create this unique landscape. It was named after its discoverer Donald Sutherland in 1880.

Yosemite Falls is the highest waterfall in North America. It drops 2,425 ft. (739 m) in the Sierra Nevada, California. The source of water is melting snow, therefore sometimes the stream may cease due to a little amount of snow. Plitvice Falls are found in Plitvice Lakes National Park, Croatia. They are not very high falls, but are stunning due to the many cascades the water has to overcome. There are hundreds of waterfalls. The colour of water varies from crystal clear to azure, to turquoise.

And finally, we have the Gullfoss (Golden Falls) in Iceland. Gullfoss is a magnificent waterfall located in southwest Iceland. Not particularly high (two 36 ft. /11 m and 68 ft. /21 m plunges), however, it is very beautiful. Due to a crevice, the river Hvítá seems to disappear into the abyss.

Next week we have a look-see at the top 5 out of 10 most beautiful waterfalls around the world. As for me, I’m back off to make the water gloomph again. Shaw out.

 

Mind Blowing Water and Energy Inventions

I believe that you will have gathered by now that I’m a pretty huge proponent of The Africa Trust. I may blather on about it, but please, pick one of numerous reasons, not in the least the fact that thanks an incredibly hard working team, potable water is brought to millions of people in the world and you’ll have really clear idea of why I’m such an enthusiast.

With this in mind, I’m constantly on the look out for discoveries / inventions that can make the world a better place for all involved. Ways that draw from nature, science, ways that are practical, sustainable and more often than not, pure genius.

*Open-Source, Personal Water Desalinator: Italy

Briefly, Eliodomestico is an eco-distiller that uses solar power to make salt water drinkable. Created by Italian designer Gabriele Diamanti, Eliodomestico is an open-source project designed to provide safe drinking water for people in developing countries. Essentially, the device works like an upside-down coffee maker to produce five litres of fresh water every day. Users begin by adding sea water in the morning. Over the course of the day, the heat of the sun causes steam to rise into a water-tight boiler. The steam is then forced down through an expansion nozzle and condenses against the lid of a collection basin. At the end of the day, users can remove the basin, which is full of fresh water and designed for transport on the head.

Eliodomestico is made from widely available materials and requires no electricity or filters; maintenance is simple, Diamanti says.

Gravity-Powered Lamp: United Kingdom

Many of us may take electric lights for granted, but there is a considerable portion of the world—around 1.5 billion people—that lives in poor, remote areas and has to rely on dangerous kerosene alternatives. Currently being funded through an Indiegogo campaign, the GravityLight hopes to change that by offering a cheap lamp that runs on a renewable resource. The device is attached to a weight, which when lifted for a few seconds harnesses enough energy to power the light for 30 minutes. Operating without batteries, the GravityLight contains no deteriorating parts and means owners don’t have to spend money to keep it running.

How fabulous are those? Pretty fabulous I say.

*extracts from an article at Spark

Autumn at the Water Cooler

Summer is winding down to a close – we’ve all had (hopefully) our summer hols, gloried in our blooming gardens and green spaces, watered the lawn, rejoiced in the warm temperatures and generally had a jolly good old time.

Now late summer progresses into autumn and with it comes a new set of to-do’s for your gardens in preparation for the winter months –

September is generally a cooler, gustier month than August and the days are noticeably shorter. While there’s not as much to do in the ornamental garden at this time of the year, if you have a fruit or vegetable patch, you’ll be busy reaping the rewards of harvest. It’s also time to get out and start planting spring-flowering bulbs for next year and you can collect seeds for next summer’s colour too.

1 – Divide herbaceous perennials.
2 – Pick autumn raspberries.
3 – Collect and sow seed from perennials and hardy annuals.
4 – Dig up remaining potatoes before slug damage spoils them.
5 – Net ponds before leaf fall gets underway.
6 – Keep up with watering of new plants, using rain or grey water if possible.
7 – Start to reduce the frequency of houseplant watering.
8 – Clean out cold frames and greenhouses so that they are ready for use in the autumn.
9 – Cover leafy vegetable crops with bird-proof netting.
10 – Plant spring flowering bulbs.

 

* Excerpts from an article in the Royal Horticultural Society

 

From Nature – Garlic

Our local whizz, Shelly, just added a page about healthy water drinks ideas, all containing a herb or spice that packs a power punch of health, with the added bonus of tasting good too. Then there was a mention on social media about the incredible healing powers of garlic and it got me to thinking – just how beneficial is garlic to our well-being?

There are apparently numerous benefits – I’m detailing just a few cloves worth here:

  1. Garlic strengthens the immune system as well as helps to fight chest infections, coughs and congestion. In the winter months garlic is a great food to boost your immune system and ward off colds and flu.
  1. Cardiovascular disease can be reduced by ingesting garlic. LDL cholesterol is no friend of garlic and the aortic plaque deposits that gather on the walls of your body’s veins can be reduced with the use of garlic too.
  1. Fungal and bacterial vaginal infections are toast when treated with garlic. When crushed or bruised, garlic releases Allicin which is a sulphuric compound that is a natural antibiotic. WWI soldiers even apparently used crushed garlic on infected wounds suffered in battle. If you decide to take garlic in tablet form be sure to use powdered capsules. The processes used to create garlic tablets destroy the Allicin that is present.
  1. Garlic regulates blood sugar as it enhances the level of insulin in the blood. This may assist in the control of diabetes. Seek medical advice if you believe the use of garlic could help your condition.
  1. Garlic is a great source of vitamin B6 which is needed for a healthy immune system and the efficient growth of new cells. Vitamin B6 can also assist with mood swings and improve your cheery disposition!

So, there you have it – 5 fabulous ways to improve your health and general well-being all packed into a clove or two. I wouldn’t try garlic steeped in water though, perhaps leave that one out.