tative numerical skills 30 static 32 time 29 vision 29 interaction 85 face-to-face 83 interferometer 326 International Congress of Mathematicians 196 International Mathematical Union 368 internet encryption 165, 277 internet protocol 267 intimation 2, 301 intuitive thinking 2 IP 267 iPad 319 iPhone 22, 238, 297 iPod 289 IQ 27, 33,