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South African renewable energy myths “peddled by former Eskom executives” dispelled

Posted on: Tue, 2017-09-19 - 22:53 By: danie

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South African renewable energy myths “peddled by former Eskom executives” dispelled

An engineering study has dispelled the myths “peddled by former Eskom executives” about the limits and costs of renewable energy capacity in South Africa.

The study was prepared for the South African Department of Energy and Eskom, and was commissioned by the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) – under the department’s South African-German Energy Programme. It was conducted by engineering consultants Markus Pöller and Marko Obert, of Moeller & Poeller Engineering GmbH.

The study confirmed that the South African power system will be sufficiently flexible to handle large amounts of variable wind and solar PV generation. The study confirms that large penetration levels of wind and solar PV can be handled by the South African power system from an active power balancing point of view, at moderate additional costs.

More detail at https://mybroadband.co.za/news/energy/229543-south-african-renewable-energy-myths-dispelled.html

South African renewable energy myths dispelled
An engineering study has dispelled the myths about the limits of renewable energy.

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Linux Foundation Head Calls 2017 ‘Year of the Linux Desktop’… While Running Apple’s macOS Himself

Posted on: Tue, 2017-09-19 - 21:52 By: danie

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Linux Foundation Head Calls 2017 ‘Year of the Linux Desktop’… While Running Apple’s macOS Himself

Then again I was personally witness to a group from Oracle giving us a presentation and using Microsoft Windows... when Oracle Linux is their own OS.

But still, if you want to be taken seriously then use what you are preaching about.

See https://itsfoss.com/linux-foundation-head-uses-macos/

Linux Foundation Head Calls 2017 'Year of the Linux Desktop'… While Running Apple's macOS Himself
Ironical! Head of The Linux Foundation uses macOS and announces 2017 as the year of Linux Desktop.

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An electric car for Africa - Because Africa is not for Sissies!

Posted on: Tue, 2017-09-19 - 11:20 By: danie

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An electric car for Africa - Because Africa is not for Sissies!

Africa is a tough place and it's requirements differ vastly from 1st world urbanised countries. Not only must the vehicle be tough but it must be easily and cheaply serviced.

An electric car to “serve the needs of the African population” was unveiled at the International Motor Show in Frankfurt. The Technical University of Munich designed the car, aimed at rural transportation. Called the aCar, it was designed for passenger and cargo transportation.

“The aCar is an offroad-capable vehicle that is affordable for people there and is capable of transporting heavy loads.”

The aCar is powered by 2 x 8kW motors and has an electric range of 80km. It has a battery capacity of 20kWh, a top speed of 60km/h, seating for 2 people, and can carry a load of 1 ton.

See http://bit.ly/2ykOW6S

An electric car for Africa
An electric car to serve the needs of the African population has been unveiled.

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The best AA battery in South Africa – MyBroadband Test

Posted on: Tue, 2017-09-19 - 06:01 By: danie

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The best AA battery in South Africa – MyBroadband Test

Of course, the "best" battery all depends on the type of usage you intend for the battery. Some usage scenarios, like for camera flashes, are short deep discharges which are completely different from a longer steady discharge. But be that as it may, this is still an interesting test conducted on AA batteries commonly available in South Africa.

See the results at http://bit.ly/2yldqgn

The best battery in South Africa – MyBroadband Test
MyBroadband tested Duracell, Energizer, Eveready, and Philips batteries – here are the results.

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How many South Africans are on Facebook, Twitter, LinkedIn and Instagram

Posted on: Mon, 2017-09-18 - 23:47 By: danie

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How many South Africans are on Facebook, Twitter, LinkedIn and Instagram

World Wide Worx has revealed the results of its latest research into South Africa’s social media landscape. Managing director Arthur Goldstuck said the number of people on Facebook in South Africa has grown to 16 million – with 14 million accessing the service from a mobile device.

“The data shows that mobile is driving social in South Africa, and particularly that mobile is driving Facebook,” said Goldstuck. He said we are heading toward a third of South Africa’s population being on Facebook.

See https://mybroadband.co.za/news/internet/229547-how-many-south-africans-are-on-facebook-2.html

How many South Africans are on Facebook
World Wide Worx has revealed the results of its latest social media research.

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WPS Office - a free (for personal use) near clone of MS Office for Windows and Linux

Posted on: Mon, 2017-09-18 - 21:45 By: danie

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WPS Office - a free (for personal use) near clone of MS Office for Windows and Linux

For those that really need that look-and-feel of using MS Office for free on Windows or Linux, there is the option of WPS Office. It works surprisingly like MS Office with Word, Excel and PowerPoint format documents. Personally, I still prefer the sheer power and cross-platform capability of LibreOffice though. I've attached screenshots showing a Calibre test .docx document displayed in both WPS Office as well as LibreOffice for comparison.

Some pro's of WPS Office:
* Free for personal use
* Very familiar MS Office look-and-feel
* Default formats are MS Office formats
* Has an Android and iOS client
* Cloud option coming soon
* Free version comes 1GB cloud storage space
* Available in 8 languages

Some con's of WPS Office:
* No ODF format at all (international open document format)
* Pay for use in a business or enterprise
* Not open source software
* No MacOS client
* Free version limited to 5 pages export to PDF

More details on free version at http://www.wps.com/office-free

9/18/17

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7 useful settings to change right away on iOS 11

Posted on: Mon, 2017-09-18 - 20:43 By: danie

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7 useful settings to change right away on iOS 11

iOS 11 adds a bevy of new features and interface tweaks to your iPhone (and even more changes for your iPad). After opening your new iPhone or upgrading your current iPhone, here are the settings to check or change straight away.

See https://www.cnet.com/how-to/7-settings-to-change-right-away-on-apple-ios-11/

7 settings to change right away on iOS 11 - CNET
These should be your first stops when taking your initial lap around iOS 11.

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Software created using taxpayers’ money should be released as Free Software

Posted on: Sat, 2017-09-16 - 23:42 By: danie

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Software created using taxpayers’ money should be released as Free Software

Why is software created using taxpayers’ money not released as Free Software?

We want legislation requiring that publicly financed software developed for the public sector be made publicly available under a Free and Open Source Software licence. If it is public money, it should be public code as well.

Code paid by the people should be available to the people!

Sign the open letter supporting this initiative at https://publiccode.eu/.

Public Money, Public Code
Public Money, Public Code - A campaign for releasing publicly financed software as Free Software

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How To Install PulseAudio Equalizer On Linux And Improve System-Wide Sound

Posted on: Sat, 2017-09-16 - 21:39 By: danie

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How To Install PulseAudio Equalizer On Linux And Improve System-Wide Sound

A great way to improve the overall sound quality on Linux is to install an equalizer however equalizer built into the music player isn’t enough. Instead, there is a different solution: Pulse Audio Equalizer. It allows the user to have a system-wide equalizer for all audio coming in and out of the system. This means that no matter what you’re listening to, be it music, videos, or human voices, you’ll be able to easily tweak it.

Getting the equalizer working is easy, and it starts with installing it to the system. Due to the fact that Pulse is open code, a lot of plugins and add-ons have been developed over the years. The equalizer is probably the must used. As a result, many Linux distributions choose to ship it (in some form or another). Here’s how to install it.

See https://www.addictivetips.com/ubuntu-linux-tips/install-pulseaudio-equalizer-on-linux/

How To Install PulseAudio Equalizer On Linux And Improve Sound
How To Install PulseAudio Equalizer On Linux And Improve Sound

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The great nutrient collapse - increased CO2 levels are affecting plant nutrition and increasing carb...

Posted on: Sat, 2017-09-16 - 19:27 By: danie

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The great nutrient collapse - increased CO2 levels are affecting plant nutrition and increasing carb levels

What Loladze found is that scientists simply didn’t know. It was already well documented that CO2levels were rising in the atmosphere, but he was astonished at how little research had been done on how it affected the quality of the plants we eat. For the next 17 years, as he pursued his math career, Loladze scoured the scientific literature for any studies and data he could find. The results, as he collected them, all seemed to point in the same direction: The junk-food effect he had learned about in that Arizona lab also appeared to be occurring in fields and forests around the world. “Every leaf and every grass blade on earth makes more and more sugars as CO2 levels keep rising,” Loladze said. “We are witnessing the greatest injection of carbohydrates into the biosphere in human history―[an] injection that dilutes other nutrients in our food supply.”

He published those findings just a few years ago, adding to the concerns of a small but increasingly worried group of researchers who are raising unsettling questions about the future of our food supply. Could carbon dioxide have an effect on human health we haven’t accounted for yet? The answer appears to be yes—and along the way, it has steered Loladze and other scientists, directly into some of the thorniest questions in their profession, including just how hard it is to do research in a field that doesn’t quite exist yet.

Earlier this summer, a group of researchers published the first studies attempting to estimate what these shifts could mean for the global population. Plants are a crucial source of protein for people in the developing world, and by 2050, they estimate, 150 million people could be put at risk of protein deficiency, particularly in countries like India and Bangladesh. Researchers found a loss of zinc, which is particularly essential for maternal and infant health, could put 138 million people at risk. They also estimated that more than 1 billion mothers and 354 million children live in countries where dietary iron is projected to drop significantly, which could exacerbate the already widespread public health problem of anemia.

The ratio of carbohydrates to minerals was going up. The plants, like the algae, were becoming junk food. What that means for humans ― whose main food intake is plants ― is only just starting to be investigated. Researchers who dive into it will have to surmount obstacles like its low profile and slow pace, and a political environment where the word “climate” is enough to derail a funding conversation. It will also require entirely new bridges to be built in the world of science ― a problem that Loladze himself wryly acknowledges in his own research. When his paper was finally published in 2014, Loladze listed his grant rejections in the acknowledgements.

See http://www.politico.com/agenda/story/2017/09/13/food-nutrients-carbon-dioxide-000511

Helena Bottemiller Evich
The atmosphere is literally changing the food we eat, for the worse. And almost nobody is paying attention.

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