عالم التقنية

Tasso Azevedo: Hopeful lessons from the battle to save rainforests

“Save the rainforest” is an environmental slogan as old as time — but Tasso Azevedo catches us up on how the fight is actually going these days. Spurred by the jaw-dropping losses of the 1990s, new laws (and transparent data) are helping slow the rate of deforestation in Brazil. Is it enough? Not yet. He has five ideas about what we should do next. And he asks if the lessons learned in Brazil be applied to an even bigger problem: global climate change.... Read More

Fredy Peccerelli: A forensic anthropologist who brings closure for the “disappeared”

In Guatemala’s 36-year conflict, 200,000 civilians were killed — and more than 40,000 were never identified. Pioneering forensic anthropologist Fredy Peccerelli and his team use DNA, archeology and storytelling to help families find the bodies of their loved ones. It’s a sobering task, but it can bring peace of mind — and sometimes, justice.... Read More

جولة داخل محطة راديو ! تعرف على كيف يتم عمل بث من إذاعة والاجهزة التي تستعمل

مواضيع تطرقت اليها سابقا :
الحلقة 980 : كيف تجعل باب الغرفة او المنزل يفتح بواسطة باسورد او ببطاقة هوية عوض المفاتيح التقليدية
http://www.th3professional.com/2015/01/RFID-lock-installation.html... Read More