Skip to Content

Bat Quiz (OQ)

Enjoy, participate and learn from the quiz forum. Post your quiz here for others to enjoy as well

Moderator: RosemaryH

User avatar
Siobain
Virtual Ranger
Virtual Ranger
Posts: 5215
Joined: Wed Feb 25, 2009 9:38 pm
Location: Johannesburg

Re: Bat Quiz (OQ)

Unread postby Siobain » Fri Dec 04, 2009 8:06 pm

:whistle:
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

User avatar
oddesy
Virtual Ranger
Virtual Ranger
Posts: 3183
Joined: Wed Jan 02, 2008 4:57 pm
Location: Randburg, SA

Re: Bat Quiz (OQ)

Unread postby oddesy » Sat Dec 05, 2009 9:47 am

A new model of a mobility aid for the blind was designed using microprocessor and ultrasonic devices

In this model, a downswept FM ultrasound signal is emitted from a transmitting array with broad directional characteristics in order to detect obstacles.


The ultrasound reflections are then picked up and evaluated by a two channel receiver.
The frequency of the emitted ultrasound is swept from 70 to 40 kHz within 1 ms, so it has almost the same characteristics as the ultrasound a bat produces for echolocation
.
The blind person is then able to listen to these sounds through earphones. They can also determine how far away the object is as well as its size once they have mastered the technology.
With it a blind person can recognize a 1-mm-diameter wire.

:shock: :shock: amazing how technoloogy can improve the lives of those less fortunate :dance: It has been so succesfull that the individual can also interopret several objects around them and navigate through them
The beginning of knowledge is the discovery of something we do not understand.

"We are what we repeatedly do. Excellence, then, is not an act, but a habit." Aristotle

User avatar
Siobain
Virtual Ranger
Virtual Ranger
Posts: 5215
Joined: Wed Feb 25, 2009 9:38 pm
Location: Johannesburg

Re: Bat Quiz (OQ)

Unread postby Siobain » Sat Dec 05, 2009 11:06 am

Thanks for taking the trouble to look this up Ods; :thumbs_up: Isn't it amazing where technology
is taking us!

There is also this article I found interesting about a revolutionary walking cane that
does something similar.

'Batcane' link
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

User avatar
oddesy
Virtual Ranger
Virtual Ranger
Posts: 3183
Joined: Wed Jan 02, 2008 4:57 pm
Location: Randburg, SA

Re: Bat Quiz (OQ)

Unread postby oddesy » Sat Dec 05, 2009 11:52 am

It is amazing! wow what an interesting article, thanks :thumbs_up: :thumbs_up:
The beginning of knowledge is the discovery of something we do not understand.

"We are what we repeatedly do. Excellence, then, is not an act, but a habit." Aristotle

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 7460
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Bat Quiz (OQ)

Unread postby Elzet » Sat Dec 05, 2009 5:04 pm

Awesome stuff - and so great for visually challenged people! Tx for great info, S & Ods. :thumbs_up: :clap:
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
Siobain
Virtual Ranger
Virtual Ranger
Posts: 5215
Joined: Wed Feb 25, 2009 9:38 pm
Location: Johannesburg

Re: Bat Quiz (OQ)

Unread postby Siobain » Sun Jan 24, 2010 4:33 pm

As a rule fruit bats (Eidolon helvum) roost about a wingspread apart from one another.
However, there is an event that takes place every year in southern Africa that causes this
to change, and the bats are said to roost so distinctively, that "from a distance they look
like swarms of honeybees, their densely packed brown bodies hanging from every bole and
branch of every tree and even from one another." What event is this, and where does it
take place?
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

User avatar
Siobain
Virtual Ranger
Virtual Ranger
Posts: 5215
Joined: Wed Feb 25, 2009 9:38 pm
Location: Johannesburg

Re: Bat Quiz (OQ)

Unread postby Siobain » Thu Jan 28, 2010 10:43 pm

:whistle:
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14461
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: Bat Quiz (OQ)

Unread postby Imberbe » Thu Jan 28, 2010 11:35 pm

I found this:

Distribution: The Walberg's epauletted fruit bat can be found in Africa, anywhere south of the Sahara desert. These bats live in woodland and savannah areas, and prefer the edges of forests. During the summer, they migrate in large numbers to Tzaneen, in the Soutpansberg district of South Africa, attracted by the ripening crop of guavas.


:huh:
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

User avatar
Siobain
Virtual Ranger
Virtual Ranger
Posts: 5215
Joined: Wed Feb 25, 2009 9:38 pm
Location: Johannesburg

Re: Bat Quiz (OQ)

Unread postby Siobain » Thu Jan 28, 2010 11:53 pm

Good answer Imberbe! Close, I'm looking for a larger annual migration. :lol:
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

User avatar
onewithnature
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 22177
Award: Quiz Whiz of the Year (2013)
Joined: Tue Dec 23, 2008 5:22 am
Location: Midway between the infinite and the infinitesimal!

Re: Bat Quiz (OQ)

Unread postby onewithnature » Sun Feb 07, 2010 10:07 pm

:hmz:
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14461
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: Bat Quiz (OQ)

Unread postby Imberbe » Fri Feb 26, 2010 9:24 pm

:huh:
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

User avatar
onewithnature
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 22177
Award: Quiz Whiz of the Year (2013)
Joined: Tue Dec 23, 2008 5:22 am
Location: Midway between the infinite and the infinitesimal!

Re: Bat Quiz (OQ)

Unread postby onewithnature » Fri Feb 26, 2010 9:35 pm

Was a great Q ... what's the answer, Siobain? Please.
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14461
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: Bat Quiz (OQ)

Unread postby Imberbe » Fri Feb 26, 2010 10:17 pm

Are you thinking of the annual gathering next to the Musola river in the Kasanka national park in Zambia?

They arrive from the Congo in time for the rainy season, due to the huge numbers of fruit available in the area. They weigh approx. 700 gram each ... but are known to break tree branches, because of the numbers congregating in the sleeping areas.

WEG Magazine March 2010 has a nice article.
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

User avatar
Siobain
Virtual Ranger
Virtual Ranger
Posts: 5215
Joined: Wed Feb 25, 2009 9:38 pm
Location: Johannesburg

Re: Bat Quiz (OQ)

Unread postby Siobain » Fri Feb 26, 2010 10:26 pm

Thanks Imberbe, yes the arrival of the bats to Zambia's Kasanka National Park usually in October.

Known as one of the great wildlife wonders, it is said that up to 8,000,000 Fruit Bats arrive.
a truly spectacular occurrence, here is the
LINK
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

User avatar
onewithnature
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 22177
Award: Quiz Whiz of the Year (2013)
Joined: Tue Dec 23, 2008 5:22 am
Location: Midway between the infinite and the infinitesimal!

Re: Bat Quiz (OQ)

Unread postby onewithnature » Sun Feb 28, 2010 7:05 am

Wonderful Q, Siobain. :clap: Fascinating stuff - must be a sight to savour!

Well done, Imberbe. :clap:
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)


Return to “Quizzes”