687 search results
Seismograph
Society, Politics & Law

Seismograph

...easy to amplify an electric current, so even tiny movements can be detected. Today's seismometers measure the amount of electrical energy needed to keep a mass centered in its housing when the ground is being shaken. Not only can modern seismometers detect tiny movements in the earth, they can record a wide range of seismic signals, from very low to very high frequencies...
View activity Seismograph
Activity 10 mins
Climate change – How awareness is prevented through media sanitation
Nature & Environment

Climate change – How awareness is prevented through media sanitation

...energy that produces carbon dioxide), their advert ought to be commended for drawing attention to the catastrophe that is unfolding. By squashing the Iceland advert, Clearcast is playing into the political agenda of palm oil producers. Their businesses are thereby shielded from scrutiny and from public awareness preventing the public to choose alternative products. [Trump...
View article Climate change – How awareness is prevented through media sanitation
Article 10 mins
Sniffing out signs of life
Science, Maths & Technology

Sniffing out signs of life

...energy balance, forcing changes to its climate. VOCs clearly have an intimate relationship with Earth and its life. If we can develop ways to identify VOCs and where they might have come from, we can apply this knowledge to similar environments elsewhere, perhaps even to other planetary bodies where life might have existed in the past. The presence or distribution of VOCs...
View article Sniffing out signs of life
Article 5 mins
Why are today's progressive political heroes still old white men?
Society, Politics & Law

Why are today's progressive political heroes still old white men?

...energy into electoral success and genuine progressive change. As Sanders declared in 2014: The major political, strategic difference I have with Obama is it’s too late to do anything inside the beltway. You gotta take your case to the American people, mobilise them, and organise them at the grassroots level in a way that we have never done before. Both men’s appeal...
View article Why are today's progressive political heroes still old white men?
Article 10 mins
The ageing brain: 'use it or lose it'
Health, Sports & Psychology

The ageing brain: 'use it or lose it'

...energy consuming process. Food processing isn’t the only thing affected by ageing though. The way our bodies process medication slows down remarkably too with increasing age. This is mostly because our kidney and liver functions slow down naturally with ageing and we are often lightly, if not moderately, dehydrated. This means that any medication we take, takes longer...
View article The ageing brain: 'use it or lose it'
Article 10 mins
Why is discovering gravitational waves from a neutron star collision a big deal?
Science, Maths & Technology

Why is discovering gravitational waves from a neutron star collision a big deal?

...energy in a fraction of a second than the sun will pump out in ten billion years. For several decades we have observed these gamma ray bursts, but without knowing for sure what causes them. However, just 1.7 seconds after the gravitational waves from GW170817 arrived at the Earth, NASA’s Fermi satellite observed a short burst of gamma rays in the same general region of...
View article Why is discovering gravitational waves from a neutron star collision a big deal?
Article 15 mins
Tamsin Edwards - Stories of Change
Nature & Environment

Tamsin Edwards - Stories of Change

...energy to avoid climate change, and the Lukewarmers are saying, ‘Well, maybe we don’t need to avoid that much of it. Maybe in fact some degree of warming will be beneficial for us, it’ll encourage the growth of plants, for instance, with the extra CO2.’ TE: It’s interesting. A lot of what we aim to do with climate change of course comes down to our values. Do we...
View audio Tamsin Edwards - Stories of Change
Audio 5 mins
An introduction to geology
Science, Maths & Technology

An introduction to geology

...energy. [Described image] Figure 2.6 Smelting plant The cost of the electricity used to split the bond between aluminium and oxygen in alumina makes up somewhere between one and two fifths (20–40%) of the total cost of aluminium. In fact, Al smelting plants use so much power that they are usually sited right next to power stations, in order to reduce the loss of power...
View course An introduction to geology
Level 1: Introductory 12 hrs