Be simple so that life could be simpler
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Be simple so that life could be simpler
This is to remind people of the added value of simplicity
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10 Piercing Quotes on Struggle, Change & Surrender.

10 Piercing Quotes on Struggle, Change & Surrender. | Be simple so that life could be simpler | Scoop.it
In the past couple of years, I've faced challenges. Nearly every time, I went back to my old ways of avoidance, denial, and resistance. Then I

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There are other plans beyond A, B & C. So Be creative.
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French.news.cn-Afrique: toute l'actualité sur l'Afrique

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Double attentat à N'Djamena : le bilan s'élève à 37 morts

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OriginOil, Annonce réussie la première phase du Programme pilote professionnel d'algues carburant

OriginOil, le développeur d'une technologie de pointe pour transformer les algues, la source la plus prometteuse de l'huile renouvelable, dans un véritable concurrent au pétrole. Le Tchad Possède tous les atouts afin permettant la production de biocarburant à partir d'algues...


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Les vertues de la spiruline !

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Berkeley creates the first graphene earphones, and unsurprisingly they have a superb performance

Berkeley creates the first graphene earphones, and unsurprisingly they have a superb performance | Be simple so that life could be simpler | Scoop.it

Researchers at the University of California, Berkeley have created the first ever graphene audio speaker: an earphone. In its raw state, without any kind of optimization, the researchers show that graphene’s superior physical and electrical properties allow for an earphone with frequency response comparable to or better than a pair of commercial Sennheiser earphones.

 

A loudspeaker (or earphone or headphone) works by vibrating a (usually) paper diaphragm (aka a cone), creating pressure waves in the air around you. Depending on the frequency of these waves, different sounds are created. Human ears, depending on their age, can usually hear frequencies between 20Hz (very low pitch) and 20KHz (very high). Generally, the quality of a speaker is defined by how flat its frequency response is — in other words, whether it produces sounds equally well, no matter where they fall on the 20Hz to 20KHz scale. A poor speaker, or, say, a bassy set of headphones, might be very strong in the lower ranges, but weaker at the top.

 

In Berkeley’s graphene earphone, the diaphragm is made from a 30nm-thick, 7mm-wide sheet of graphene. This diaphragm is then sandwiched between two silicon electrodes, which are coated with silicon dioxide to prevent any shorting if the diaphragm is driven too hard. By applying power to the electrodes, an electrostatic force is created, which causes the graphene diaphragm to vibrate, creating sound. By oscillating the electricity, different sounds are created.

 

Given graphene’s status as a wonder material we shouldn’t really be surprised, but it turns out that this graphene speaker — the first of its kind — has intrinsically excellent performance. As you can see in the graph above, the graphene earphone’s frequency response is superb. The reason for this is down to the graphene diaphragm’s simplicity: Whereas most diaphragms/cones must be damped (padded, restricted) to prevent undesirable frequency responses, the graphene diaphragm requires no damping. This is because graphene is so strong that the diaphragm can be incredibly thin — and thus very light. Instead of being artificially damped, the graphene diaphragm is damped by air itself. As a corollary, the lack of damping means that the graphene diaphragm is also very energy efficient — which could be important for reducing the power usage of smartphone and tablet speakers.


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Images insolites de corps incroyablement flexibles_French.news.cn

Images insolites de corps incroyablement flexibles_French.news.cn | Be simple so that life could be simpler | Scoop.it
Images insolites de corps incroyablement flexibles---
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Incredible !

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Twitter / chishafcb: "@QuoteAndVerse: A father to ...

Absolutely true !

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Twitter / naseem6020: You don’t need to be smart, ...

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Twitter / canalplus: La spéciale Skyfall du ...

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AFRIQUE: les 5 femmes les plus puissantes du continent

AFRIQUE: les 5 femmes les plus puissantes du continent | Be simple so that life could be simpler | Scoop.it
Sans être spécifiquement relié au milieu des affaires, cette liste m’a quand même permis d’apprendre un peu plus sur les femmes influentes de l’Afrique. Rendu public seulement hie...

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When Firing Bad Teachers Isn't an Option, Train Them Instead | Education News

When Firing Bad Teachers Isn't an Option, Train Them Instead | Education News | Be simple so that life could be simpler | Scoop.it
Firing under-performing school teachers isn't an option in all school districts, but at least one training program has shown promise to improve teacher quality.
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Macho men let their female partners’ higher income threaten their relationship: study | Health, Medical, and Science Updates

Macho men let their female partners’ higher income threaten their relationship: study http://t.co/uCreaG8b via @sharethis...
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Reading literacy statistics - countries compared - Nationmaster

Reading literacy includes definition, source, graph and map. Sort by amount. Sort by country.
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Tchad: 10 à 20 ans requis pour l’agression mortelle du fils du président

Tchad: 10 à 20 ans requis pour l’agression mortelle du fils du président | Be simple so that life could be simpler | Scoop.it
VERSAILLES (AFP) Dix à vingt ans de réclusion ont été requis mercredi en appel contre cinq hommes accusés d’un braquage qui avait coûté la…
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Cela a pris trop de temps !

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Fruit and Map Projections

Fruit and Map Projections | Be simple so that life could be simpler | Scoop.it

Via Seth Dixon
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Great artistic tips !

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Seth Dixon's curator insight, June 15, 2015 10:37 AM

Bare with me here; this culinary hack shows several images that are helpful for explaining how map projections represent parts of the Earth (or the orange in this example).  The Polar regions are often displayed in azimuthal projections which are most accurate near one specified point.  Slicing the orange at the top and bottom is akin to creating polar azimuthal projections.  Universal Transverse Mercator (UTM) is a system that divides Earth into 60 "slices" with each wedge representing 6 degrees of longitude.  Each wedge has a Meractor projection map with perfect representation along a central line of longitude.  If we imagine the peel adjacent to one wedge has been flattened out, that is good way to visualize UTM maps.  


Tagsmappingmap projections, cartography, perspective, map.

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Malawi : le gouvernement vend l'avion présidentiel pour aider les plus pauvres

Malawi : le gouvernement vend l'avion présidentiel pour aider les plus pauvres | Be simple so that life could be simpler | Scoop.it

Le gouvernement du Malawi a vendu l'avion présidentiel pour aider les plus pauvres. C'est la décision qui a été prise suite à lapénurie alimentaire qui touche 10% de la population de 13 millions d'habitants que compte le pays. L'avion qui compte en tout 14 place a été acheté par le défunt président Bingu wa Mutharika à 22 millions de dollars et revendu à 15 millions de dollars. 

 


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Voilà un gouvernement qui se soucie de sa population !

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Karima Mann's curator insight, September 6, 2013 6:02 PM

Malawi sells presidential plane to address the local food crisis.

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Production de spiruline au Lac Tchad - Tchadonline TV

PRODUCTION DE SPIRULINE AU LAC TCHAD DU 05 avril 2010 à 16:50 


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Twitter / AZusanne: I realize that on this man's ...

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Odd Relationship

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Twitter / AfrikInfo: RDC : l'ONU durcit ses mesures ...

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Twitter / SautiSol: The most important thing a ...

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Tchad : après la tempête, s'ouvrir au monde | Tchad : un potentiel bancaire XXL

Tchad : après la tempête, s'ouvrir au monde | Tchad : un potentiel bancaire XXL | Be simple so that life could be simpler | Scoop.it
Très concurrentiel, le marché bancaire tchadien a triplé de volume en six ans et regorge encore d'opportunités susceptibles d'attirer de nouveaux établissements. D'autant que la clientèle dès particuliers reste à conquérir.

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La Spiruline au Tchad

Les femmes productrices de spiruline à Brandji Tchad...

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Massive Ice Melt In Greenland Worries Scientists

Massive Ice Melt In Greenland Worries Scientists | Be simple so that life could be simpler | Scoop.it

A pair of NASA satellite images taken just four days apart tells a potentially worrying story of melting ice in the polar summer.

The first, snapped from orbit on July 8, shows about 40 percent of the Greenland ice sheet shaded in pink or red to illustrate probable or confirmed surface melting. The second photo, taken on July 12, shows nearly the entire land mass — 97 percent — blotched in a red hue.

 

In a typical year, only about half of the Greenland ice sheet undergoes this kind of melting before it later refreezes. But the rapidity and extent of the July change is what has caught scientists off guard, said Thomas Mote, a professor at the University of Georgia, who helped confirm the data from three satellites.

 

Scientists note that besides covering a large area, the melting is happening at the top of the ice cap, where temperatures are coldest. They blame a massive heat dome parked over the island that has set up perfect conditions for melting high-altitude snow and ice.

 

Alarming? "I wouldn't use that word," say Mote. "We know from looking at ice cores that melt at the highest levels of elevation in Greenland has occurred in the past — not in our lifetimes, and not since the era of satellites, but it certainly has occurred." The last time it happened was about 150 years ago, in 1889, according to ice core records. But the Greenland melt roughly coincides with a giant chunk of ice described as "twice the size of Manhattan," breaking off the Petermann Glacier in northern Greenland.


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LOOK: No More Plastic For Austrian Family

LOOK: No More Plastic For Austrian Family | Be simple so that life could be simpler | Scoop.it
Troubled by the high levels of pollution plaguing our planet, an Austrian family has committed themselves to living a life without plastic and has inspired many others along the way.
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Consortium of Colleges Takes Online Education to New Level

Consortium of Colleges Takes Online Education to New Level | Be simple so that life could be simpler | Scoop.it
Major universities are joining Stanford, Princeton and others to expand Coursera, a venture that offers free massive open online courses, or MOCCs.
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