Donald Castillo

  • 812 Presentations

Member since: December 27, 2017

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All about Gravity with inter...
Research & Analytics
265 Views 4 years ago pptx
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Top 10 books to read for bet...
Education
239 Views 4 years ago pptx
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What is an Ion Thruster with...
Research & Analytics
214 Views 4 years ago pptx
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Difference between Hard Disk...
Technology
223 Views 4 years ago pptx
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RFID vs Barcodes vs QR Codes...
Technology
648 Views 4 years ago pptx
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Future of Cryptocurrency and...
Investors & Funding
233 Views 4 years ago pptx