In the United States today, a loose convention draws the lower limit for a skyscraper building at 150 meters. An extremely tall skyscraper, particularly one that is taller than 300 meters (1,000 ft), is sometimes colloquially referred to as a supertall.
Hotels tend to have one floor every 3.1 meters and office buildings one floor every 3.9 meters. A 195 meter hotel would have about 63 floors.
Dong thinks that by the time that German windfarm begins construction, there will be turbines as powerful as 13MW or 15MW.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.