# Timing: Part 2 - The Birth Of Video Recording

The peculiarities of the motion of planet Earth are responsible for much more than seasons and the midnight sun and it took a while before it was all figured out.

Fig.1 - The equation of time has two Fourier components. The first a) has a period of one year and is due to the non-circular orbit. The second b) has a period of six months and is due to the inclination of the polar axis. The sum of a) and b) is c).

Fig.2 - Seen from the sun, the Earth’s axis appears square to the ecliptic at the solstices, but leans over 23 degrees at the equinoxes. The component of the Earth's rotation in the ecliptic is reduced at the equinoxes so the sun’s apparent speed with respect to lines of longitude is reduced.

Fig.3 - On the left, the quadrant of the earth from equator to pole was defined as ten million meters. The intention was to divide it into 100 grads, each of which was one hundred centigrads, corresponding to a distance of 1km. The idea wasn’t popular and instead the quadrant on the right was divided into 90 degrees, each of which contained 60 seconds of arc. One arc-second corresponds to a nautical mile, which became the standard navigational unit.

# Improving Headset Comms At Extreme Events:  Part 2 - Design For User Comfort

We move on to looking at developments in noise cancelling technology and the role it can play in achieving clarity and comfort within headsets for intercom use.

# HDR: Part 26 - Creative Technology - MovieLabs Software Defined Workflows

The term “paperless office” goes back at least to 1978. The parallel term “filmless movie” is actually far older, dating perhaps from a 1930 article by the Hungarian inventor Dénes Mihály in the West Australian, published in Perth on 9 April 1930. Given how…

# 5G Gaining Momentum In Broadcast, But Universal Infrastructure (And Experience) Lagging

The recent news that NTV has become the first Russian TV channel to experiment with 5G broadcast, one of many such transmission tests that have been conducted over the past 18 months, illustrates that broadcasters see a bright future in the…

# The Sponsors Perspective: PRISM Waveform Monitors: Form Is Temporary, But Class Is Permanent?

In the beginning, there was television. And whenever people tried to make television programmes effective video signal monitoring was an essential pre-requisite.

# Timing: Part 3 - Early Synchronization

Synchronizing became extremely important with the growth of AC power systems, which ended up being used to synchronize all sorts of equipment, from Radar to television.