Month: July 2018

Hinged Crest Gates

Hinged Crest Gates

Hinged Crest Gates

07/13/18

“How can we make a  floodgate that works by rotation?”

 

Floods happen in all types of environments with different conditions. Therefore, humanity will need to build different types of Floodgates that can adapt to these conditions. One of these types may need to work in colder, urban environments, where trash and ice may easily accumulate. By using a rotating gate, which can quickly dispose of any possible residue. These Hinged Crest Gates have been employed all over the world in frigid environments.

Floodgates

Floodgates

Floodgates

07/11/18

“How can we use infrastructure to control floods?”

 

With the advent of climate change, floods are becoming quite more common. But thanks to human ingenuity, this can be prevented through the use of floodgates. Fllodgates are a common form of flood control which can protect towns from nearby flooding by creating adjustable gates that limit water elevation.

Flood Control

Flood Control

Flood Control

07/10/18

“How can we make our built infrastructure resilient to unpredictable floods?”

 

As the climate continues to warm, floods such as those in Houston are becoming more common. To act in accord with climate change adaptation, societies can make implement flood control into their infrastructure. This includes measures such as constructing floodgates or zoning buildings away from flood zones.  

Avedøre Power Station

Avedøre Power Station

Avedøre Power Station

07/09/18

“What is the most efficient power station in the world?”

 

Power stations are not usually known to be efficient. But some can break this boundary. The Avedøre Power Station in Denmark is a combined heat and power station which utilize as much as 94% of the energy in the fuel and convert 49% of the fuel energy into electricity.

Band-Pass Filters

Band-Pass Filters

Band-Pass Filters

07/08/18

“How can we combine a low-pass and a high-pass filter?”

 

High-pass and low-pass filters are great for attenuating signals to certain extreme frequencies. However, sometimes we would like to only have a certain range of frequencies neither high nor low present instead. This is where we can use a band-pass filter, which limits the frequency range to a certain bandwidth.

Dither

Dither

Dither

07/07/18

“How can we fix signal noise by inducing noise?”

 

When converting a signal from a higher-bit to a lower-bit resolution, unpleasant noise can be induced. To fix this, we can add in some low-volume noise called Dither before the conversion, effectively eliminating the truncation error. Dithering is commonly used in audio sampling during file compression.

Demodulation

Demodulation

Demodulation

07/05/18

“How can we extract information from a signal?”

 

Modulation is amazing for transmitting signals along great distances. However, in order to retrieve their information we have to revert them back to their original form. This can be done with Demodulation, usually done by multiplying the received signal by a signal identical to the Carrier Signal to rectify it.

Modulation

Modulation

Modulation

07/05/18

“How can we transmit information through signals across long distances?”

 

Audio signals are great for transmitting information from one place to another. However, they lack the ability to travel far. So how can we get around this problem? Well, radio frequencies happen to be very capable of traveling great distances. So why don’t we merge our audio frequency Modulation Signal with a radio frequency Carrier Wave to get a new, information-rich, distance capable Modulated-Carrier Signal? This is the idea behind Modulation and is one of the most fundamental parts of radio transmissions.