Technology
Reconstruction
![](/wp-content/thumbs/9e6734588aedad5a35723308b7960fcd9c02b4f4_300-200cropped.jpg)
Notre-Dame Cathedral in 3D
A digital image created by art historian Andrew Tallon almost a decade ago could help in the reconstruction of Notre-Dame de Paris cathedral
By Redação
Information technology
![](/wp-content/thumbs/430d80eeb08a80af120b780ddd325f9e94bb089d_300-200cropped.jpg)
Deciphering blockchain
System created to support cryptocurrency is now being used in a number of other applications
By Redação
Entrepreneurship
![](/wp-content/thumbs/6a30104bf6d30d52884014851639f55c1bcdfe17_300-200cropped.jpg)
The land of the unicorns
First billion-dollar startups begin to emerge in Brazil
By Suzel Tunes
PAPER INDUSTRY
![](/wp-content/thumbs/808f7d16f070877762f86665eec06536bfd0e907_300-200cropped.jpg)
Paper from cane fiber and leaves
Companies use sugarcane waste to produce printer paper and packaging
Ophthalmology
![](/wp-content/thumbs/ac69eefe7eecf9242da4c0af753de7a5b9533937_300-200cropped.jpg)
Eye on the smartphone
Handheld devices that perform eye exams may facilitate remote diagnosis
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