In 2021 pieces of Mars will land safely on earth as part of Mars 2020. The Mars 2020 rover collects samples and leaves them in canisters on the surface. The lander deploys a fetch rover to collect the samples and deposit them in an ascent vehicle, which blasts into Mars orbit. There, a return orbiter […]
The BepiColombo mission launched in October 2018 will enter orbit around Mercury on December 5, 2025. Here’s an incredible animation of its 9 gravity assists past Earth (once), Venus (twice) and Mercury (six times).
The Saturn V rocket got to the moon burning 20 tones of fuel per second. An African elephant weighs roughly 5 tons. So roughly 4 elephants worth of fuel per second. Amazing video illustration:
This wonderful illustration from July 2019 National Geographic explains one of Elon Musk’s greatest space innovations – rocket reuse. Adding reusable technology reduces the payload and cost. In order to make the Falcon 9 reusable and return to the launch site, extra propellant and landing gear must be carried on the first stage, requiring around […]
This mapped graphical visualization of six Swainson’s Hawks from Data is Beautiful caught my attention.
In August I donated to my local humane society (San Francisco Aid for Animals). I received two hand written thank you letters in response. A very nice gesture. Makes me want to donate again.
Everything – desktop search f.lux – dims screen hues at night Faststone – screen capture Webex – teleconferencing Dropbox – file sharing synced across your computers Ultramon – adds task bar to extended monitor Microsoft security essentials – free virus protection Evernote – note taking software for pc, web, and phone Chrome – browser that syncs passwords and bookmarks across your computers Picasa […]
Great family pictures from Thanksgiving this year.
Here’s the advice I give when folks ask me for tips on applying to Wharton MBA. GMAT prep courses are expensive and worth the money (I did Princeton, it cost a boatload) Take lots of practice courses (I took over 20 practice exams and pretended like they were the real thing each time) Try to […]