How the automobile differential allows a vehicle to turn a corner while keeping the wheels from skidding.
Here’s the recorded video of a 5-minute talk I gave at Battery San Francisco about Fix Maps. The talk format is called “Ignite” which calls for 20 slides that auto-advance every 15 seconds.
Here’s the slides from the talk.
Snow caves are fun to build and provide warm places to sleep and take shelter from a storm. This is a brief how-to guide to building a snow cave.
The snow cave in this example was built by 4 people near Skinner Hut at the edge of the timberline in late-December 2015 at 11,620 feet. Builders were Brett Poulin, Chris, Nick, and me, Neal Mueller. The cave we built was large enough to sleep and provide eating quarters and shelter for 4 people. It included a vapor escape for cooking.
Step 1. Find snow drift, not cornice. We found our snow drift nearby Skinner Hut at 11,620 feet in Colorado. It had a gorgeous view and was large enough for the snow cave.
Step 2. Use shovel or hoe to excavate snow cave. It helps to have just one-person inside and a team outside to ferry loads of snow away from the entrance. TIME: Our snow cave took 4 athletic people about 2 hours to excavate.
Step 3. Use snow saw to create snow cave benches or sleeping bunks, save blocks. Keep the bunks above the height of the door entrance, or allow for a heat pocket. Heat rises. TIME: Our snow cave took 4 athletic people about 1 hour to deepen.
Step 4. Use snow saw to raise ceiling height of snow cave, save blocks. TIME: Our snow cave took 4 athletic people about 1 hour to raise the ceiling.
Step 5. Line and narrow snow cave entrance with sawed blocks. TIME: Our snow cave took 4 athletic people about 1 hour to narrow the entrance and finalize.
That’s it. You’re done. Now you can use snow cave for shelter or fun. Below are photos of our snow cave as it was excavated. Remember to keep a shovel inside the cave, in case you get snowed in.
The snow cave pictured above was my second snow cave.
My first snow cave was at 15,000 feet just above the head-wall on Mt. Denali with Mike Wood, Jed Workman, and Evan Howe of AMS. Here’s a picture of that snow cave. You can see me in the far back, second from the left.
Here is a snow cave diagram (book source).
Have fun. Stay warm.
This guy analyzed 250 SaaS pricing pages — here’s what he found:
- The average number of packages is three and a half
- 50% highlight a package as the best option
- 69% of companies sell the benefits
- 81 percent organize prices low to high
- 38 percent list their most expensive package as ‘Contact us’
- The most common call to action is ‘Buy Now’
- 36 percent don’t use a contrasting CTA color
- 63 percent offer a free trial
- 4% of companies offer pricing on a sliding scale
- 81 percent of packages are named
- 6% show a money back guarantee on-page
Read the full report.
Best definition I’ve seen of growing products on the web.
A growth hacker is someone who has thrown out the traditional marketing playbook and replaced it with only what is testable, trackable, scalable…while their marketing brethren track vague notions like branding and mindshare, growth hackers relentlessly pursue users and growth (source: Ryan Holiday).
A sign of over-exuberance. What some might call a bubble. Seen in San Francisco’s Mission district.
Want to know how to spell “Red Bull gives you wiiings.” in hexadecimal? Check out these two red bull advertisement in silicon valley. Here’s a hex to text converter to see for yourself. It’s not a recruiting ad, because this is the only job they have in SF. Must be just advertising to thirsty programmers. I love it.
52 65 64 20 42 75 6c 6c 20 67 69 76 65 73 20 79 6f 75 20 77 69 69 69 6e 67 73 2e
Video of internal 1997 meeting 2-months after Jobs returned to Apple. He defines marketing as values. Sets the vision as something other than speeds and feeds. Launches the brand for the next 15-years, which you can see even today. The 1997 ‘Think Different’ billboards are reminiscent of the 2015 ‘Shot on Iphone 6’ billboards.
Worth the 16 minutes if you’re interested in corporate strategy and branding.
[via Mike Dauber]