Review: Cobra 3 Channel Mini Helicopter - Elite w/Gyro
Overview
Control- 8/10 - Easy and precise, although sometimes is harder to control while next to vertical surfaces
Maneuverability- 7/10 - Good but not the easiest to become accustomed to
Stability- 10/10 - Excellent stability throughout all movements
Hover- 9.5/10 - Incredibly easy but it can be hard to maintain exactly equal altitude
Lift Speed- 8.5/10 - Quick lift speed
Forward Speed- 7.5/10 - Good speed but slow acceleration to max speed
Flight Time- 6/10 - Good flight time of about 10-15 minutes but after about 7 minutes there is a noticeable difference in rotor speed
Charge Time- 6/10 - 30-40 minutes
Cost- 8.5/10 - $30-$50
Overall- 8/10
Overall this helicopter is quite excellent, as it flies well and due to its all metal body can SURVIVE ANY CRASH, as long as you're not stupid and you fly indoors.
Unfortunately I have had a bad experience with Cobra and the manufacturing of this helicopter. I flew it a ton the day i got it, and it flew fine. The next day, it couldn't fly, but instead would spin helplessly on the floor, regardless of minor adjustments. It became apparent that it had been poorly constructed, as the top rotor could move separately than its axle.
I really like this helicopter, and hope that mine will be fixed or replaced soon.
UPDATE
Thanks to customer support, a vital screw was located, and i received a free screwdriver to fit it. The screw was located on the upper propeller apparatus, and clamped the apparatus to the drive shaft. After it was tightened, the helicopter flew as well as it had out of the box.
Videos
Neither video features this helicopter, although a previous model and a similar one.
A blog of Science, Nature, Mythology, Probability, Literature, Gaming, and much more.
Tuesday, July 19, 2011
Tuesday, July 12, 2011
Prometheus
In Greek Mythology, Prometheus is a Titan and the brother of Atlas and Epimetheus. Prometheus and Epimetheus were entrusted with the job of "designing" all of the animals. Epimetheus made animals with claws and armor, and countless other tools for survival. Prometheus decided to create one perfect being, and thus he created mankind. Prometheus realized that humans, with soft skin and no apparatus for battle like Epimetheus' creations, needed a tool that would place them above the rest of the animals, and closer to the divine. He stole fire from Zeus and gave it to the humans. As a punishment, Prometheus was bound to a rock in the Caucasus where every day an eagle would eat his liver, which would regrow by night.
Polyscheme
"Polyscheme is a cognitive architecture designed to achieve human-level artificial intelligence and to explain the power of human intelligence. We choose and evaluate research efforts primarily on how they help advance the ability of systems to do what people can and computers can't yet. Polyscheme has enabled computer models that explain how background knowledge and context can be used to understand language that is ungrammatical, nonliteral and ambiguous; robotic systems that can reason and plan while incorporating incomplete and noisy information from a dynamic environment; and computational models of children's physical, social and linguistic reasoning."
-http://www.cassimatis.com/polyscheme.html
To me Polyscheme looks like part of the development of true Reason in computers and computational sciences. This topic is very important and full of potential. Nobody wants a doctor who can only read from a book, and everybody wants a doctor who can tell them if it is safe for them to run with their unique injury.
This also is a progression of our understanding of the human brain. We know some, but not much, about how the human brain reacts to stimuli, but we know even less about what actually gives us humans strong emotions, reason, and educated decisions; or individuality, humor, and opinion.
-http://www.cassimatis.com/polyscheme.html
To me Polyscheme looks like part of the development of true Reason in computers and computational sciences. This topic is very important and full of potential. Nobody wants a doctor who can only read from a book, and everybody wants a doctor who can tell them if it is safe for them to run with their unique injury.
This also is a progression of our understanding of the human brain. We know some, but not much, about how the human brain reacts to stimuli, but we know even less about what actually gives us humans strong emotions, reason, and educated decisions; or individuality, humor, and opinion.
Polyscheme and Prometheus- An Quick Introduction
Polyscheme and Prometheus will discuss or concern various topics across many fields of knowledge and interests. The focus of this blog will be on a wide variety of sciences as well as various hobby-like activities.
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