If you've ever seen the TV show "Skippy" you may have heard Skippy going "tch tch tch". I have never heard a kangaroo make that sound. A male will cluck at a female to reassure her when he's trying to mate with her and kangaroos of either gender will growl preparatory to fighting. I've tried to get sound recordings of this, but so far without any luck, but note the movies of a common wallaroo and the Whiptail Wallabies mating I have on my movies page.

Probably not, but it's possible a sonic boom may be heard somewhere along the descent path from Oregon to Utah. The capsule probably will not make any visible streaks in the sky as it descends through the atmosphere but it might. The capsule itself is less than five feet in diameter, probably too small to be seen, though its parachute will be visible to the retrieval helicopter pilots and possibly to nearby viewers at the test range. For more information, see http://genesismission.jpl.nasa. See similar questions...

quot;Noise" is a general term referring to any sound a speaker system makes that is not part of the original source material. There are many different types and sources of noise, each with its own solutions. Below is an explanation of the most common types of noise, what causes them, and how to minimize their occurrence and effects. Sound card If the humming or buzzing gets louder or softer with changes in the volume setting, this is an indication of noise coming from the sound card. See similar questions...

Opossums are very quiet creatures. You are far more likely to see one long before hearing any noises from it. When threatened they often will hiss, much like a cat, and can make a low growling sound. Some have reported hearing opossums softly purring to their young, though I have never been so privileged. One person wrote me to say they'd once heard a young opossum mewing like a kitten, but it is the only such report I've received. See similar questions...

These noises are common during the first few days after surgery. Air in the pocket causes these types of noises, but they will dissipate anywhere from a few days to a few weeks post-op. Sloshing may also be the result of an under-filled implant. For example, if you have a Mentor 300cc implant, Mentor recommends that the implant be filled to at least 300cc, and no more than 325cc. If the implant is filled to, say, 275cc, you may get a sloshing effect. See similar questions...

We do not censor our clients as far as what sounds they may make. It is not unusual for a client to groan or make sounds while being worked on by us. See similar questions...

Sometimes you will hear a single small squeak. We believe that the hamster is calling to another hamster in the hamstery, but a lone hamster is still know to make this noise. Also you may hear a 'terrible squealing when you put your hand in to handle a new hamster. This means that the hamster is afraid. It will not usually bite while it is making this noise. Pick up the hamster gently and cup it in your hands. It will gradually stop. See similar questions...

Implant noise is a transient phenomenon occurring from air in the soft tissue after the breast augmentation surgery. This air is gradually absorbed by the body and the implant becomes silent! I a Candidate Preparing for Surgery About the Surgery Breast Implant Options Breast Enlargement Photos Your Recovery Potential Risks & Complications Frequent Questions Testimonials What to Expect After Surgery See similar questions...

It is always best to turn off cell phones and pagers before the concert begins. Noises such as pagers going off or a cell phone ringing are very distracting to the conductor, the musicians and your fellow audience members, and are considered to be quite rude. See similar questions...

Yes. Sloshing and squeaking noises are normal and will subside. Air can be trapped around the implants, but the "sloshing" is not coming from inside the implants. See similar questions...

The description for this is like hearing an electric pencil sharpener or a huge swarm of bumble bees. You will almost belive that by the time your glider stops crabbing at you, your house will be filled to the ceiling with newly sharpened pencils. They also bark at each other and this is one of my favorite noises as they sound like miniature micro puppies. Another is while they are sleeping, it is almost like they are snoring by making sounds of little popping bubbles. See similar questions...

When the water is being heated to the proper temperature, it can make gurgling or boiling sounds. If these sounds are getting louder, there may be a mineral deposit buildup. To prevent this, please look in your manual to see how to clean your brewer regularly to keep it free from deposits. See similar questions...

There are several programs, such as Talker, that read .spk files. The programs used on PERQ-2, and T2, systems are not compatible with the PERQ-1 systems. Known .spk files play music as complex as that from Handel (sounds fairly good through the PERQs speaker!). The voices of people speaking have also been recorded. Does anyone have the schematics to the circuitry, and software, used to record information into these files. It is necessary to perform some hardware hacking. See similar questions...

Below is a list of noise levels for sounds and equipment that you may be familiar with. Many of the examples are from the NIOSH website, but other references have also been used. It is important to keep in mind that you should really be concerned with the noise level at the ear, instead of the noise that is actually produced by the equipment. Therefore many of the examples have to be used with thought. See similar questions...

Vocalizations may serve several purposes. Some animals, particularly young ones, vocalize to get attention when they want food. Other vocalizations are signs of aggression and warn other animals (or animal care volunteers) to be careful. Large male California sea lions bark to advertise their dominance; their voice is part of their display. Some animals may vocalize at The Center when they are stressed. See similar questions...

With MRI, the patient stays in one position while the machine captures images from different directions using three small magnets inside the larger magnet. The banging noises are the small magnets altering the magnetic field to focus on a specific body part. See similar questions...