logo
logo
Sign in
lamraze kijoundia
je suis passionez par la mode et plus particulierement les bijoux mais aussi les montres ! vous savez une belle bague et un collier ou un beau bracelet sa
Followers 0 Following 0
lamraze kijoundia 2021-04-20
img

The most common glasses are made by brutally cooling a bath of molten oxides.

These glass casting processes are supposed to provide very homogeneous glassy materials with large dimensions (10x10x3cm for about 1kg, see figure).

But are they really so homogeneous?

This is what scientists from the laboratory Extreme conditions and materials: high temperature and irradiation (CNRS) and the laboratory Glass surface and interfaces (CNRS/Saint Gobain Research) wanted to verify.The thermal memory of glass reveals its historyglass temperature Published by Adrien on 20/04/2021 at 09:00Source: CNRS INCThe most common glasses are made by brutally cooling a bath of molten oxides.

This is what scientists from the laboratory Extreme conditions and materials: high temperature and irradiation (CNRS) and the laboratory Glass surface and interfaces (CNRS/Saint Gobain Research) wanted to verify.As part of a fundamental study on the diffusion mechanisms in glass, they studied by Raman imaging samples of sodium and calcium aluminosilicates obtained by this casting process.

Surprising images revealed macroscopic scrolls on the surface of the glass, a kind of surface inhomogeneities, which are a memory of the casting process and testify to the thermal history of the glass.Indeed, during the casting process, the liquid jet cools down progressively and falls on a surface with an evolving temperature: cold at the beginning, then hotter and hotter because the molten liquid flows on the cooling glass.

collect
0
lamraze kijoundia 2021-04-20
img

The stewardship will follow, so to speak, and the creative potential is limited from the start.

Behind this conception of strategy lies what Béatrice Rousset and I call an "ideal" mental model in our book on the subject.This model corresponds to a vision of the world centered on an ideal to be reached, which is the sole concern of the leader, who consequently disdains the minor questions of implementation, delegated to subordinates.

Behind the apparent aristocratic elegance of the model lies an intellectual laziness, but above all a profound ignorance of innovation, which leads to a failure to make the effort to understand deeply and intensely what a technology is and to imagine what it can bring.Many great disruptors have done the opposite: they started with a technology and imagined its implications; they started with the resource and asked themselves: what can we do with this?

This is the fundamental question of effectuation, the logic of entrepreneurs: instead of starting from a goal and finding the resources to reach it, with effectuation we start from the available resources to imagine the possible goals.Imagining is the important word here, because what makes a resource valuable is the use we find for it.

For example, in a previous article, I mentioned the story of Dragon Lady, a Chinese entrepreneur who built a fortune by buying up unwanted cardboard in the United States and selling it in China.

A new technology disrupts existing mental models, which explains why it is often adopted by new entrants who are not prisoners of their historical models.Jeff Bezos, the founder and boss of Amazon, is one of those who best understood the crucial importance of technology as an enabler of strategy.

collect
0
lamraze kijoundia 2021-04-20
img

The most common glasses are made by brutally cooling a bath of molten oxides.

These glass casting processes are supposed to provide very homogeneous glassy materials with large dimensions (10x10x3cm for about 1kg, see figure).

But are they really so homogeneous?

This is what scientists from the laboratory Extreme conditions and materials: high temperature and irradiation (CNRS) and the laboratory Glass surface and interfaces (CNRS/Saint Gobain Research) wanted to verify.The thermal memory of glass reveals its historyglass temperature Published by Adrien on 20/04/2021 at 09:00Source: CNRS INCThe most common glasses are made by brutally cooling a bath of molten oxides.

This is what scientists from the laboratory Extreme conditions and materials: high temperature and irradiation (CNRS) and the laboratory Glass surface and interfaces (CNRS/Saint Gobain Research) wanted to verify.As part of a fundamental study on the diffusion mechanisms in glass, they studied by Raman imaging samples of sodium and calcium aluminosilicates obtained by this casting process.

Surprising images revealed macroscopic scrolls on the surface of the glass, a kind of surface inhomogeneities, which are a memory of the casting process and testify to the thermal history of the glass.Indeed, during the casting process, the liquid jet cools down progressively and falls on a surface with an evolving temperature: cold at the beginning, then hotter and hotter because the molten liquid flows on the cooling glass.

lamraze kijoundia 2021-04-20
img

The stewardship will follow, so to speak, and the creative potential is limited from the start.

Behind this conception of strategy lies what Béatrice Rousset and I call an "ideal" mental model in our book on the subject.This model corresponds to a vision of the world centered on an ideal to be reached, which is the sole concern of the leader, who consequently disdains the minor questions of implementation, delegated to subordinates.

Behind the apparent aristocratic elegance of the model lies an intellectual laziness, but above all a profound ignorance of innovation, which leads to a failure to make the effort to understand deeply and intensely what a technology is and to imagine what it can bring.Many great disruptors have done the opposite: they started with a technology and imagined its implications; they started with the resource and asked themselves: what can we do with this?

This is the fundamental question of effectuation, the logic of entrepreneurs: instead of starting from a goal and finding the resources to reach it, with effectuation we start from the available resources to imagine the possible goals.Imagining is the important word here, because what makes a resource valuable is the use we find for it.

For example, in a previous article, I mentioned the story of Dragon Lady, a Chinese entrepreneur who built a fortune by buying up unwanted cardboard in the United States and selling it in China.

A new technology disrupts existing mental models, which explains why it is often adopted by new entrants who are not prisoners of their historical models.Jeff Bezos, the founder and boss of Amazon, is one of those who best understood the crucial importance of technology as an enabler of strategy.