The general concepts found in this section are: 1  The earth's atmosphere is a very thin layer wrapped around a very large planet. 2  Two gases make up the bulk of the earth's atmosphere: nitrogen (), which comprises 78% of the atmosphere, and oxygen (), which accounts for 21%.
Lean startup is an approach to business development that is based on the principles of lean production, a manufacturing methodology that values a business' ability to change quickly. Download 9 FREE Strategic Planning Templates that your Peers Already Use.
What is a Startup Accelerator? The most distinct difference between accelerators and incubators is the time frame of each. An accelerator works with startups for a short and specific amount of time, usually from 90 days to four months. Accelerators also offer startups a specific amount of capital, usually somewhere around $20,000.