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A man's nose.

One Trillion Smells...

... claimed that humans can discriminate only 10,000 different smells. Now a new paper published this week in the journal ... starts with inhaling. So, you inhale a bit of air that has smells in it - good smells, bad smells, food smells, flower smells, excrement ...

An array of spices

Who nose how smell works?

... off. Cells will respond very very differently to different smells; they’ll give different signals in time to precisely ... to say that we detect each one of those, but most of the smells that we detect in the real world are very very ... receptor that enable you to detect a particular range of smells. Chris - If this is genetic then, that means that ...

http://en.wikipedia.org/wiki/Image:Brussels_sprout_closeup.jpg...

Why some people can, but others can't

There are certain smells and tastes that some people love, but others hate. ... the genes that encode the proteins that detect different smells.  It turns out that we actually have huge numbers of ... for this is we can train them to respond to different smells.  So, when we have different versions of these genes ...

A mouse.

Smells of other females make mice live longer

Exposing young mice to the smells of other mice can affect their rate of sexual ... long time that in rodents, if you expose a female mouse to smells of a male, she will become sexually mature very fast, ... environment. Similarly, if you expose a female mouse to smells from other females, she will slow down her rate of ...

sniffing

Shape of odour molecules determines smell

... colognes, soaps, and food scents. But do we like certain smells because everyone around us likes them and so that’s ... the world over like - and loathe - the same sorts of smells, as Julia Ravey heard from Asifa Majid from the ... it's culture that, for example, causes our preferences for smells, or just individual preferences, or biology. Julia - ...

sniffing

QotW: why do our senses of smell differ?

... let me tell you, I wish I could block out some of those smells. Here to explain the situation of your partner's ... how we even smell in the first place... Sandeep - Smells are actually detected in your nose by specialised ... called 'olfactory sensory neurons'. These neurons detect smells because each expresses a specialised odour detector ...

Brain schematic

A sniff test to determine consciousness

... would do the sniff test, so they would present different smells that were either neutral, pleasant smells like shampoo or unpleasant smells like rotten fish. And after each presentation they ...

Shirts drying on a washing line

How can you remove body odour from clothes?

... them. Water is fantastic for getting rid of those horrible smells and also you can use a detergent. Now, detergents are ... white vinegar in a bowl of water and that will absorb the smells from the room and neutralise them. Izzie  - And so ... is a great example of how you can actually trap these smells. Febreze has a structure in it called a cyclodextrin ...

PERFUME

How does smell work in the brain?

... does that mean there are specific receptors for specific smells? Because there's a lot of smells... Elisa - That's exactly right. And if you can think of smells like keys and the receptors as locks, there are lots ...

What makes the perfect cup of coffee?

... to help them work out why really great coffee tastes and smells the way it does. Graihagh Jackson went to meet coffee ... to smell is the Zambia Terranova coffee. Graihagh -   Smells quite earthy to me.  It's my initial instinct.  What do you think, Alex? Alex -   It smells very warm and aromatic.  It smells like coffee. ...

What does a comet smell like?

... scientists, like Matt Taylor, have reconstructed what it smells like! Graihagh Jackson went along to give it the sniff ... ammonia are stable so you can imagine what this comet smells like but we thought it would be best to provide a ... they're known in the US. I still get mothballs so it still smells like 'a Nan' basically. The comet smells like 'a Nan' ...

Were medieval people less smelly?

... might have smelled like and they include also some toilet smells and cooking smells, mouldy things. Smells are pretty awful. And from what we know from the ...

Floating Gold by Christopher Kemp cover

Is ambergris whale vomit or whale poo?

... and fresh. It's even a little sticky in my hand and it smells like sheep dung. It's just incredibly dungy. It's what ... So I'm holding now a piece of white ambergris and it smells completely different. It smells much sweeter, much more pleasant, it's just not as in ...

A mosquito biting a finger

Bug Spray acts as Chemical Cloak

... given off by living, breathing animals.  They use the smells of sweat and the CO 2 given out in breath to home in ... the chemical can somehow 'blind' the insects to the food smells they look for. Writing in this week's Science, Mathias ... have receptors on the surface for the attractive sweaty smells, and so their electrical activity increases in the ...

Pheromones And The Science of Seduction

... smell molecule? And are some people missing some types of smells? Peter - That's a really good question. There are lots ... much greater abilities to both detect both really faint smells and to distinguish lots of fine differences in the ... tasters, have much greater ability to certainly talk about smells and to put labels on them. Chris - Is it because ...

Comet 67P-Churyumov-Gerasimenko - image from the European Space Agency - ESA

Rosetta-Philae: sniffing out comets

... Graihagh Jackson actually got to find out what that comet smells like... Matt - My name's Matt Taylor. I work for the ... eggs, ammonia, a stable so you can imagine what this comet smells like but we thought it would be best to provide a ... they're known in the US. I still get mothballs so it still smells like 'a Nan' basically. The comet smells like 'a Nan' ...

Mosquito

Blinding Insects To Smells May Be The Best Repellent

... a genetic linch pin which enables insects to pick up smells... Without it they cannot detect airbourne odours, ... all rely on the same gene - dubbed Or83b - to detect smells. When the researchers removed the gene from laboratory ... a genetic linch pin which enables insects to pick up smells... Blinding Insects To Smells May Be The Best Repellent ...

Dog nose

Why is it that some smells disappear with continued smelling?

... that says, 'This is a really strong smell, this is what it smells like.' The signals that are being sent by those ... - The evidence is that men and women make equal amounts of smells, equally often during the day. Kat - Yeah, yeah... Why is it that some smells disappear with continued smelling? Why is it that some ...

A profile of a beautifully shaped human Nose, from a Belgian male aged 80.

Why do the farts of others smell worse?

... in your nose a little bit. You effectively get used to the smells you're going to make and this means that because ... that our sense of smell is relative. So, we get used to smells in other words. So, when you come home from holiday ... your door to your house and you sort of think, "Oh, it smells a bit musty. I'm going to go and open some windows." ...

A man's nose.

Sensory science and Covid

... to look really amazing, as are my sausages. And it smells good! Tristan - Yeah, it smells great doesn't it? I've got to say that they are ... well. If you're in a kitchen, you might smell the cooking smells, but things might be in the oven unseen. You don't see ...

A pair of bare feet

Why do my feet smell like corn chips?

... noticed that when you've eaten asparagus that your wee smells funny as well and that's because of the release of ... thioesters, which smell very pungent. So, the cheese smells cheesy because the Brevibacteria releasing S-methyl ... feet, and they're releasing this chemical compound which smells of cheesy corn chips as Tad says. Dominic - And I ...

Scent sticks

Smells boost long-term memory

... scanner to memorise things that she pairs with different smells... Laura - We wanted to understand this process of ... phenomenon more, so you represent the thing that the smells are associated with more often so it gets consolidated ... do this... Laura Shanahan, Northwestern University How do smells influence memory consolidation during sleep? Smells ...

Clownfish

Clownfish babies all at sea

... channel that smelt of sea anemones or tropical trees - the smells of their home reefs. But they weren't drawn to the ... in more acidic water, the fish were still attracted to the smells of home - anemones and tropical trees, but they also ... - down to 7.6, the clownfish stopped responding to any smells at all - even if they were transferred back to normal ...

Child smelling a rose

Not to be sniffed at: Aromas and memory

... to an occasion from long ago. So why is this, and why are smells so memorable? Chris Smith spoke to Andy Johnson from ... associations between particularly emotional memories and smells. Chris - So a smell elicits activity in a very similar ... variants. Andy Johnson, University of Bournemouth Why do smells bring back the past so vividly? Not to be sniffed at: ...

Mints contain menthol which gives the impression of cold

Can chemicals tell right from left?

... and they had a little more trouble. Male -   I think it smells a bit lemony.  It also reminds me of baby wipes. ... the groups and this is what they thought... Female -   It smells like a mixture of lemon and mint. Female -   I think ... are with the right-handed carvone... Male -   I think it smells minty. Female -   Yeah, just like a peppermint. ...