如果你把超过10%的水果放在一个堆叠的农产品展示中——要小心了。
杂货店里标志性的倾斜农产品陈列柜倒塌时可能会造成混乱。但是，在这个结构倒塌之前可以取出多少水果的问题却异常复杂。发表在12月的《物理评论E》上的一项新研究最终给出了答案。
智利安托法加斯塔大学的物理学家爱德华多·罗哈斯说，水果展示的崩塌是研究雪崩和山体滑坡动力学的一个很好的系统，因为它们相对简单。所有的物体都以一种非随机的、晶体
nversion {
border: 1px solid #ffcccb;
color: white;
margin-top: 50px;
background-image: url("/wp-content/themes/sciencenews/client/src/images/cta-module@2x.jpg");
padding: 20px;
clear: both;
}
]]>
*{color:var(--zephr-color-text-main)}.zephr-registration-form-relative-container{position:relative}.zephr-registration-form-flex-container{display:flex}.zephr-registration-form-input.svelte-blfh8x{display:block;width:100%;height:calc(var(--zephr-input-height) * 1px);padding-left:8px;font-size:16px;border:calc(var(--zephr-input-borderWidth) * 1px) solid var(--zephr-input-borderColor);border-radius:calc(var(--zephr-input-borderRadius) * 1px);transition:border-color 0.25s ease, box-shadow 0.25s ease;outline:0;color:var(--zephr-color-text-main);background-color:#fff;font-family:var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont)}.zephr-registration-form-input.svelte-blfh8x::placeholder{color:var(--zephr-color-background-tinted)}.zephr-registration-form-input-checkbox.svelte-blfh8x{width:auto;height:auto;margin:8px 5px 0 0;float:left}.zephr-registration-form-input-radio.svelte-blfh8x{position:absolute;opacity:0;cursor:pointer;height:0;width:0}.zephr-registration-form-input-color[type="color"].svelte-blfh8x{width:50px;padding:0;border-radius:50%}.zephr-registration-form-input-color[type="color"].svelte-blfh8x::-webkit-color-swatch{border:none;border-radius:50%;padding:0}.zephr-registration-form-input-color[type="color"].svelte-blfh8x::-webkit-color-swatch-wrapper{border:none;border-radius:50%;padding:0}.zephr-registration-form-input.disabled.svelte-blfh8x,.zephr-registration-form-input.disabled.svelte-blfh8x:hover{border:calc(var(--zephr-input-borderWidth) * 1px) solid var(--zephr-input-borderColor);background-color:var(--zephr-color-background-tinted)}.zephr-registration-form-input.error.svelte-blfh8x{border:1px solid var(--zephr-color-warning-main)}.zephr-registration-form-input-label.svelte-1ok5fdj.svelte-1ok5fdj{margin-top:10px;display:block;line-height:30px;font-size:12px;color:var(--zephr-color-text-tinted);font-family:var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont)}.zephr-registration-form-input-label.svelte-1ok5fdj span.svelte-1ok5fdj{display:block}.zephr-registration-form-button.svelte-17g75t9{height:calc(var(--zephr-button-height) * 1px);line-height:0;padding:0 20px;text-decoration:none;text-transform:capitalize;text-align:center;border-radius:calc(var(--zephr-button-borderRadius) * 1px);font-size:calc(var(--zephr-button-fontSize) * 1px);font-weight:normal;cursor:pointer;border-style:solid;border-width:calc(var(--zephr-button-borderWidth) * 1px);border-color:var(--zephr-color-action-tinted);transition:backdro您好:手机麻将这款游戏可以开挂的,确实是有挂的,通过添加客服微信安装这个软件.打开.
手机麻将怎么辅助是可以的，看以下步骤：
一、首先在官方下载游戏app或者添加小程序（其他链接）
二、打开你手机游戏玩法，找到在应用中找到对应的玩法辅助器。
二、打开辅助器按照辅助器的教程操作
三、按照操作使用教程:
7不懂找到前方图片中的微信号咨询
.zephr-registration-progress-bar-step.svelte-8qyhcl:last-child{margin-right:0}.zephr-registration-form-input-error-text.svelte-19a73pq{color:var(--zephr-color-warning-main);font-family:var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont)}.zephr-registration-form-input-selec您好:手机麻将这款游戏可以开挂的,确实是有挂的,通过添加客服微信安装这个软件.打开.
手机麻将怎么辅助是可以的，看以下步骤：
一、首先在官方下载游戏app或者添加小程序（其他链接）
二、打开你手机游戏玩法，找到在应用中找到对应的玩法辅助器。
二、打开辅助器按照辅助器的教程操作
三、按照操作使用教程:
7不懂找到前方图片中的微信号咨询
#009fe3;border-width:0 2px 2px 0;transform:rotate(45deg);top:3px;left:8px;box-sizing:border-box}.zephr-registration-form-checkmark.disabled.svelte-1gzpw2y{border:1px solid var(--zephr-color-background-tinted)}.zephr-registration-form-checkmark.disabled.checked.svelte-1gzpw2y:after{border:solid var(--zephr-color-background-tinted);border-width:0 2px 2px 0}.zephr-registration-form-checkmark.error.svelte-1gzpw2y{border:1px solid var(--zephr-color-warning-main)}.zephr-registration-form-input-radio.svelte-1qn5n0t{position:absolute;opacity:0;cursor:pointer;height:0;width:0}.zephr-registration-form-radio-label.svelte-1qn5n0t{display:flex;align-items:center;font-family:var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont)}.zephr-registration-form-radio-dot.svelte-1qn5n0t{position:relative;box-sizing:border-box;height:23px;width:23px;background-color:#fff;border:1px solid #ebebeb;border-radius:50%;margin-right:12px}.checked.svelte-1qn5n0t{border-color:#009fe3}.checked.svelte-1qn5n0t:after{content:"";position:absolute;width:17px;height:17px;background:#009fe3;background:linear-gradient(#009fe3, #006cb5);border-radius:50%;top:2px;left:2px}.disabled.checked.svelte-1qn5n0t:after{background:var(--zephr-color-background-tinted)}.error.svelte-1qn5n0t{border:1px solid var(--zephr-color-warning-main)}.zephr-form-l您好:手机麻将这款游戏可以开挂的,确实是有挂的,通过添加客服微信安装这个软件.打开.
手机麻将怎么辅助是可以的，看以下步骤：
一、首先在官方下载游戏app或者添加小程序（其他链接）
二、打开你手机游戏玩法，找到在应用中找到对应的玩法辅助器。
二、打开辅助器按照辅助器的教程操作
三、按照操作使用教程:
7不懂找到前方图片中的微信号咨询
svelte-d1zv9r{width:100%;height:4px;border-radius:2px}.zephr-registration-form-password-bar.svelte-d1zv9r:not(:first-child){margin-left:8px}.zephr-registration-form-password-requirements.svelte-d1zv9r{margin:20px 0;justify-content:center}.zephr-registration-form-password-requirement.svelte-d1zv9r{display:flex;align-items:center;color:var(--zephr-color-text-tinted);font-size:12px;height:20px;font-family:var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont)}.zephr-registration-form-password-requirement-icon.svelte-d1zv9r{margin-right:10px;font-size:15px}.zephr-registration-form-password-progress.svelte-d1zv9r{display:flex;margin-top:10px}.zephr-registration-form-password-bar.svelte-d1zv9r{width:100%;height:4px;border-radius:2px}.zephr-registration-form-password-bar.svelte-d1zv9r:not(:first-child){margin-left:8px}.zephr-registration-form-password-requirements.svelte-d1zv9r{margin:20px 0;justify-content:center}.zephr-registration-form-password-requirement.svelte-d1zv9r{display:flex;align-items:center;color:var(- -zephr-color-text-tinted);font-size:12px;height:20px;font-family:var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont)}.zephr-registration-form-password-requirement-icon.svelte-d1zv9r{margin-right:10px;font-size:15px}]]>
* {
color: #FFFFFF;
font-weight: bold
font: 25px;
}
.zephr-registration-form-progress-bar.svelte-8qyhcl {
width: 100%;
border: 0;
border-radius: 20px;
margin-top: 10px;
display: none;
}
.zephr-registration-form-response-message-title.svelte-179421u {
font-weight: bold;
margin-bottom: 10px;
display: none;
}
.zephr-registration-form-response-message-success.svelte-179421u {
background-color: #8db869;
border: 1px solid #8db869;
color: white;
margin-top: -0.2rem;
}
.zephr-registration-form-text.svelte-i1fi5:nth-child(1){
font-size: 18px;
text-align: center;
margin: 20px auto;
font-family: var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont);
color: white;
}
.zephr-registration-form-text.svelte-i1fi5:nth-child(5){
font-size: 18px;
text-align: left;
margin: 20px auto;
font-family: var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont);
color: white;
}
.zephr-registration-form-text.svelte-i1fi5:nth-child(7){
font-size: 18px;
text-align: left;
margin: 20px auto;
font-family: var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont);
color: white;
}
.zephr-registration-form-text.svelte-i1fi5:nth-child(9){
font-size: 18px;
text-align: left;
margin: 20px auto;
font-family: var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont);
color: white;
}
.zephr-registration-form-input-label.svelte-1ok5fdj span.svelte-1ok5fdj {
display: none;
color: white;
}
.zephr-registration-form-input.disabled.svelte-blfh8x, .zephr-registration-form-input.disabled.svelte-blfh8x:hover {
border: calc(var(--zephr-input-borderWidth) * 1px) solid var(--zephr-input-borderColor);
background-color: white;
}
.zephr-registration-form-checkbox-label.svelte-1gzpw2y {
display: flex;
align-items: center;
font-family: var(--zephr-typography-body-font), var(--zephr-typography-body-fallbackFont);
color: white;
font-size: 20px;
margin-bottom: -20px;
}]]>
Using computer simulations, Rojas and colleagues modeled fruit stacked at many different angles to identify when a collapse would never happen and when one would happen instantly. In between those extremes, the team?simulated what would happen to the integrity of the display when more and more fruit was removed.
a
“Their?simulations certainly seem to have some of the hallmarks of our everyday?experience,” says Arshad Kudrolli, a physicist at Clark University in Worcester, Mass. “It is a nice approach?and can be generalized easily.”
Rojas and colleagues next hope to simulate angled stacks of objects of different sizes that are randomly arranged, like piles of rocks that could lead to dangerous rockslides.
?
