What is the value of an orange dollar bill? Detailed answer

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What is the value of an orange dollar bill? Detailed answer

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What is the value of an orange dollar bill?

Now the largest of the US dollar denominations issued is 100 dollars. And from 1929 to 1945, notes were issued in denominations from $500 to $10, and even an orange $000 note specifically for payments between government agencies. They were no longer printed due to the development of the electronic payment system and to counter organized crime. Today, such bills are still in small numbers and may well serve as a means of payment in a regular store, although collectors will buy them for a much higher price.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

How many nostrils do you have?

Four. Two you see and two you don't.

Observations of the breathing process in fish lead to this discovery. Fish get oxygen from the water. Most of them have two pairs of nostrils: the front one for water inlet and a pair of "exhaust pipes" for its release.

Question: if humanity descended from fish, where did the second pair go?

Answer: deep into the head, turning into internal nostrils, called choannae - translated from Greek "chimneys". They connect to the throat and are the very device that allows us to breathe through the nose.

To do this, the internal nostrils need to somehow provide a backflow through the mouth. Incredible, but true: Chinese and Swedish scientists recently discovered a fish called Kenichthys campbelli - a fossil monster that is 395 million years old - demonstrating this process in its middle stage. Two nostril-like openings are clearly visible between the front teeth of the fish.

Fish Kenichthys campbelli is a direct ancestor of amphibians that can breathe both on land and in water. One set of nostrils allowed her to lie in shallow water and absorb food, while the second set protruded from the water - almost like a crocodile.

Similar gaps between teeth can be seen in the early stages of human embryonic development. When these gaps do not grow together, a "wolf's mouth" is obtained. This is how one ancient fish can explain two long-standing riddles of mankind at once.

The latest research, by the way, suggests that we use each of our two outer nostrils to distinguish smells by inhaling different amounts of air through our nostrils and thereby creating a kind of nasal stereo.

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Robot dog Sony aibo new generation 01.11.2017

The Japanese corporation Sony has introduced a new generation of robotic dog - intelligent pet aibo will go on sale in January next year.

Compared to its predecessors, the new robot dog looks and behaves more naturally. The dog has all parts of the body moving, and the total number of degrees of freedom reaches 22. The robot is equipped with an array of four microphones and a speaker; small OLED displays are integrated into the eyes.

Over time, aibo learns and adapts to its owners. For example, a dog remembers actions that make people smile and enjoy. In addition, the dog takes into account when the owners stroke and praise him, and when they scold him for "tricks".

The robot is endowed with a wide variety of sensors. These are touch sensors on the back and head, three-axis gyroscopes and accelerometers, motion sensors, light sensors, etc. In addition, there are cameras.

Inside aibo beats a silicon "heart" with four computing cores. The dog supports data exchange via LTE cellular networks and IEEE 802.11b/g/n Wi-Fi wireless networks.

Deep learning tools allow a robotic dog to change its behavior over time. The dog is able to demonstrate its own emotions, in particular, to reciprocate the expressions of love from the owners.

The aibo measures approximately 180 x 293 x 305 mm and weighs 2,2 kg. The battery charge is enough for two hours of active existence, recharging takes about three hours.

Initially, the novelty will be available in Japan for about $1700. In addition, owners will have to purchase an accompanying service subscription (for access to the cloud and LTE) for three years at a cost of $26 per month.

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