Canon PowerShot SX70 HS Superzoom camera bitrate and 4K video file size info

Canon PowerShot SX70 Bitrate: 123 Mb/s video file size

The Powershot Canon SX70 HS camera can record maximum video resolution of 3 840 x 2 160 pixels 4K Ultra HD. With bitrate up to 120 MB/ s.

Technical video file info:

General
Complete name: Canon SX70
Video Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/avc1/CAEP)

Video bitrate and file size per 1 minute and 1 hour, 6o minutes:

Video 4K
Bit rate : 121 Mb/s
Frame rate : 29.970

1 minute
video file size : 878 MB

1 hour / 60 minute
video file size : 52.68 GB

FHD (1920 x1080)
Bit rate : 60.2 Mb/s
Frame rate : 59.940

1 minute
video file size : 475 MB

1 hour / 60 minute
video file size : 28.5 GB

FHD (1920 x1080)
Bit rate : 30.2 Mb/s
Frame rate : 29.970

1 minute
video file size : 221 MB

1 hour / 60 minute
video file size : 13.26 GB

HD (1080×720)
Bit rate : 26.2 Mb/s
Frame rate : 59.940

1 minute
video file size :191 MB

1 hour / 60 minute
video file size : 11.46 GB


Video 4k
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.1
Format settings : 2 Ref Frames
Format settings, CABAC : No
Format settings, Reference frames : 2 frames
Format settings, GOP : M=3, N=15
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 6 s 573 ms
Bit rate : 123 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.495
Stream size : 96.5 MiB (100%)
Language : English
Encoded date : UTC 2020-09-10 18:03:19
Tagged date : UTC 2020-09-10 18:03:19
Color range : Full
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 6 s 571 ms
Bit rate mode : Constant
Bit rate : 256 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 203 KiB (0%)
Language : English
Encoded date : UTC 2020-09-10 18:03:19
Tagged date : UTC 2020-09-10 18:03:19

How to make 3D Solar panels MIT discovery (Backyard Revolution)

https://1.bp.blogspot.com/-vP0c-DrQfKo/XV7nHl1alYI/AAAAAAAAADg/qXMHf4dNSlAaH7fnVz3yxUMybl-6RPdzACK4BGAYYCw/s1600/cbx20.jpg

What is the most efficient solar cell design?

The most efficient solar cell design is currently the multi-junction solar cell. These cells are made up of multiple layers of semiconductor materials, each with a different bandgap, and are able to convert a wider range of the solar spectrum into electricity. The highest efficiency ever recorded for a multi-junction solar cell is 46.1%, achieved by a cell with four layers. The efficiency of a solar cell is measured by the ratio of the electrical power output from the cell to the power of the sunlight incident on the cell, known as the “conversion efficiency.”

What is the most efficient solar light collector?

The most efficient solar light collector is currently the parabolic trough collector. It uses a parabolic mirror to concentrate sunlight onto a receiver tube located at the focal point of the parabola. The concentrated sunlight is used to heat a fluid, which then generates steam to drive a turbine and generate electricity. These systems can have an efficiency of up to 40%.
Another highly efficient technology is the parabolic dish, which uses a parabolic dish-shaped reflector to concentrate sunlight onto a receiver located at the focal point. These systems can achieve efficiencies of up to 31%.
It is worth noting that the efficiency of a solar collector is affected by many factors, including the design and materials used, as well as the location and weather conditions in which it is used, so the most efficient design can vary depending on the specific application and context.


MIT news content:

A new dimension for solar energy

Innovative 3-D designs from an MIT team can more than double the solar power generated from a given area.David L. Chandler, MIT News OfficePublication Date:March 27, 2012

Caption:Two small-scale versions of three-dimensional photovoltaic arrays were among those tested by Jeffrey Grossman and his team on an MIT rooftop to measure their actual electrical output throughout the day.Credits:Photo: Allegra Boverman


Solve: Can’t delete folder because of thumbs.db

  1. Disable ‘always Show icons, never Thumbnail’
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https://www.sevenforums.com/tutorials/10797-thumbnail-cache-clear-reset.html

https://www.braintek.com/news/cant-delete-folder-thumbs-db-use-disk-cleanup/

https://www.raymond.cc/blog/what-you-should-know-about-thumbsdb-file/

Difference between duty cycle, frequency and pulse width explanation, pulse width vs frequency.




Duty cycle

Duty cycle refers to the amount of time that a signal is in a particular state (such as “on”) relative to the period of the signal. For example, if a signal has a duty cycle of 50%, that means that it is in the “on” state for half of the time period, and in the “off” state for the other half of the time period.

The duty cycle of a pulse waveform is a measure of the time that the signal is in a particular state (either high or low) relative to the total period of the waveform. It is usually expressed as a percentage. For example, a duty cycle of 50% means that the signal is in the high state for half of the period of the waveform, and in the low state for the other half.

Pulse width vs frequency.




Frequency

Frequency

Frequency refers to the number of times that a particular event occurs within a given time period. For example, if a signal has a frequency of 10 Hz, that means that the event (such as the signal turning “on” or “off”) occurs 10 times per second.

The frequency of a pulse waveform is a measure of how many times the waveform repeats itself in a given period of time. It is usually expressed in Hertz (Hz), which is the number of cycles per second. For example, a frequency of 1 Hz means that the waveform repeats itself once per second.

Pulse width

Pulse width

Pulse width refers to the duration of time that a signal is in a particular state. For example, if a signal has a pulse width of 5 microseconds, that means that the signal is in the “on” state for 5 microseconds before switching to the “off” state.

Pulse width is a measure of the duration of a pulse in a pulse train, or the amount of time that the pulse is in the high state. It is usually expressed in units of time, such as seconds or milliseconds. For example, a pulse with a width of 1 millisecond is high for 1 millisecond, and then low for the remainder of the period.

It is important to note that these terms are often used in the context of electrical signals, but they can also be applied to other types of signals as well.

In summary, the duty cycle is a measure of the time that the signal is in a particular state, the frequency is a measure of how many times the waveform repeats itself in a given period of time, and the pulse width is a measure of the duration of a pulse.

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