2,886 search results

Plastic materials, pollution and recycling
Science, Maths & Technology

Plastic materials, pollution and recycling

...become integral to modern life. But they can also present challenges to the environment and human health. Anyone who is interested in science, from the fundamentals of chemistry, or the properties of materials, to human health and the future of the planet needs to take an interest in plastics! [3D Printer - the first layer] Figure 1: A 3D printer producing a new object...
What's up with Whatsapp - and should we weaken its security?
Digital & Computing

What's up with Whatsapp - and should we weaken its security?

...becomes useless. However, WhatsApp’s previous system meant that the company was able to access the keys and so in theory could easily unlock the messages, breaching Alice’s privacy. Last year, the company introduced what’s called “end-to-end encryption”, which seems to have solved this problem. Alice and Bob now use keys that WhatsApp doesn’t keep specific...
How can we say Bitcoin is overvalued when we don't know how to value it?
Money & Business

How can we say Bitcoin is overvalued when we don't know how to value it?

...becoming less profitable to be a miner, especially as the energy required increases. At some stage the cost may exceed the price of Bitcoin, making the network less worthwhile to both mine and invest. Bitcoin may be the best known cryptocurrency but it is also losing marketshare to other cryptocurrencies, such as Ethereum and Litecoin. Bitcoin currently accounts for 59.4%...
Fracking: Is it possible to persuade the public that the benefits outweigh the risks
Nature & Environment

Fracking: Is it possible to persuade the public that the benefits outweigh the risks

...becomes even more important when you consider that people who feel an activity is bad are more likely to automatically judge the associated risks as high and benefits as low (based on their initial emotion-based response). But this relationship can be altered with information. Where information reduces the perception of risk, the perception of benefit goes up (and...
The psychological impacts of climate change
Nature & Environment

The psychological impacts of climate change

...become an issue most citizens agree requires urgent action. Every day, the technological means and political consensus grows to make our societies more sustainable. What is needed now is collective, courageous action to drive things much further. What we can do It’s clear what must be done to achieve COP26’s lofty goals: stop extracting and burning fossil fuels right...
An uncomfortable truth: How Britain has criminalised rough sleepers
Society, Politics & Law

An uncomfortable truth: How Britain has criminalised rough sleepers

...becoming ever more visible in British cities. [The Conversation] But rather than finding ways to accommodate the homeless, the UK government has sought to criminalise them. From archaic vagrancy laws, to the more recent Public Spaces Protection Orders (PSPOs), governments have been passing new laws and reviving old ones which result in the punishment of people with no...
The science behind your Christmas dinner
Science, Maths & Technology

The science behind your Christmas dinner

...become a very important vegetable in the everyday lives of millions of people, due to their cheap farming and cooking versatility. But not everything in the potato garden is rosy. The potato plant has developed a mechanism to protect itself from predators: it contains toxic compounds known as glycoalkaloids, which do no harm to the plant itself but, if ingested by us, can...
20 things you might not know about Belfast
History & The Arts

20 things you might not know about Belfast

...become landmark structures of the city. Each of them can lift loads up to 840 tonnes. If you'd rather stick to dry land, though... 3. John Boyd Dunlop invented the pneumatic tyre in Belfast Bicycles fitted with his tyres soon started winning Belfast cycling races. One of the losers later set up a business franchise with J B Dunlop - to start producing the tyres in Dublin....